CN115459868A - Millimeter wave communication performance evaluation method and system in complex environment - Google Patents
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Abstract
The invention provides a millimeter wave communication performance evaluation method and system under a complex environment, and relates to the technical field of data processing. The technical problems that in the prior art, the evaluation accuracy of the millimeter wave communication performance of the complex environment is low, the communication transmission experience of users is reduced, and the millimeter wave communication construction improvement of technicians is not facilitated are solved. The technical effects of improving the millimeter wave communication performance evaluation accuracy, facilitating the execution of communication transmission by a user and the optimization of millimeter wave communication application by technicians are achieved.
Description
Technical Field
The invention relates to the technical field of data processing, in particular to a millimeter wave communication performance evaluation method and system in a complex environment.
Background
The millimeter wave is electromagnetic wave between microwave and light wave, the wavelength is in the range of 1-10 mm, and the millimeter wave has the characteristics of two wave spectrums of microwave and light wave. Millimeter wave communication is communication by taking millimeter waves as a carrier for transmitting information, has the advantages of high security and confidentiality of information transmission and good transmission quality, and is widely applied to the fields of military communication and satellite communication.
Compared with other waveforms, millimeter wave communication has the advantages of signal transmission, and has the defect of large influence degree by severe environments, particularly, the millimeter wave signal attenuation degree is the largest in complex environments such as rainfall, so that the millimeter wave communication performance in the complex environments is analyzed and determined, feedback adjustment is carried out on the construction of a millimeter wave communication system, and effective level attenuation allowance is provided to improve the transmission capacity of the millimeter wave signals in the complex severe environments, so that the millimeter wave communication system becomes an important direction for current millimeter wave communication research.
The technical problems that the evaluation accuracy of millimeter wave communication performance under a complex environment is low, the communication transmission effectiveness of millimeter wave communication users is interfered, millimeter wave communication construction is carried out by millimeter wave communication technicians in a reference mode, and the millimeter wave signal transmission performance is optimized exist in the prior art.
Disclosure of Invention
The application provides a millimeter wave communication performance evaluation method and system in a complex environment, which are used for solving the technical problems that in the prior art, the evaluation accuracy of millimeter wave communication performance in the complex environment is low, so that the communication transmission effectiveness of millimeter wave communication users is interfered, and meanwhile, millimeter wave communication technicians are not facilitated to construct and optimize millimeter wave signal transmission performance in reference to millimeter wave communication.
In view of the foregoing problems, the present application provides a method and a system for evaluating millimeter wave communication performance in a complex environment.
In a first aspect of the present application, a millimeter wave communication performance evaluation method in a complex environment is provided, where the method includes: acquiring environmental parameters of a plurality of environmental indexes in a plurality of environments for wireless communication by adopting target millimeter wave signals, and acquiring a plurality of environmental parameter sets; acquiring a plurality of error rate information for performing wireless communication in the plurality of environments by using the target millimeter wave signal, wherein the plurality of error rate information and the plurality of environment parameter sets are in one-to-one correspondence; normalizing the plurality of environment parameter sets and the plurality of error rate information to obtain a plurality of normalized environment parameter sets and a plurality of normalized error rate information; calculating the correlation between the error rate and the plurality of environmental indexes according to the plurality of normalized error rate information and the plurality of normalized environmental parameter sets to obtain a plurality of index correlations; constructing a millimeter wave communication performance evaluation model according to the plurality of index correlations; acquiring environmental parameters of a plurality of environmental indexes in an environment which adopts the target millimeter wave signal for wireless communication at present to obtain a real-time environmental parameter set; and inputting the real-time environment parameter set into the millimeter wave communication performance evaluation model to obtain a millimeter wave communication performance evaluation result.
In a second aspect of the present application, a millimeter wave communication performance evaluation system in a complex environment is provided, the system including: the system comprises an environmental parameter acquisition module, a data processing module and a data processing module, wherein the environmental parameter acquisition module is used for acquiring environmental parameters of a plurality of environmental indexes in a plurality of environments which adopt target millimeter wave signals for wireless communication and acquiring a plurality of environmental parameter sets; a transmission status acquisition module, configured to acquire multiple bit error rate information for performing wireless communication in the multiple environments by using the target millimeter wave signal, where the multiple bit error rate information and the multiple environment parameter sets correspond to each other one to one; the information processing execution module is used for carrying out normalization processing on the plurality of environment parameter sets and the plurality of error rate information to obtain a plurality of normalization environment parameter sets and a plurality of normalization error rate information; the index analysis processing module is used for calculating the correlation between the error rate and the plurality of environment indexes according to the plurality of normalized error rate information and the plurality of normalized environment parameter sets to obtain a plurality of index correlations; the evaluation model building module is used for building a millimeter wave communication performance evaluation model according to the index correlations; the environment parameter acquisition module is used for acquiring and acquiring environment parameters of a plurality of environment indexes in the environment which adopts the target millimeter wave signal for wireless communication at present, and acquiring a real-time environment parameter set; and the evaluation result output module is used for inputting the real-time environment parameter set into the millimeter wave communication performance evaluation model to obtain a millimeter wave communication performance evaluation result.
One or more technical solutions provided in the present application have at least the following technical effects or advantages:
the method provided by the embodiment of the application obtains a plurality of environment parameter sets by obtaining the environment parameters of a plurality of environment indexes in a plurality of environments for wireless communication by adopting the target millimeter wave signal, and provides objective data basis for subsequent analysis and determination of the influence condition of the target millimeter wave communication environment on the communication signal; acquiring a plurality of error rate information for performing wireless communication in the plurality of environments by using the target millimeter wave signal, wherein the plurality of error rate information and the plurality of environment parameter sets are in one-to-one correspondence; normalizing the plurality of environment parameter sets and the plurality of error rate information to obtain a plurality of normalized environment parameter sets and a plurality of normalized error rate information, and providing reference information for subsequent study of complex environment on target millimeter wave wireless communication performance so as to improve millimeter wave communication data transmission quality; calculating the correlation between the error rate and the plurality of environmental indexes according to the plurality of normalized error rate information and the plurality of normalized environmental parameter sets to obtain a plurality of index correlations; constructing a millimeter wave communication performance evaluation model according to the plurality of index correlations; acquiring environmental parameters of a plurality of environmental indexes in an environment which currently adopts the target millimeter wave signal for wireless communication, and acquiring a real-time environmental parameter set; and inputting the real-time environment parameter set into the millimeter wave communication performance evaluation model to obtain a millimeter wave communication performance evaluation result. The technical effects of improving the millimeter wave communication performance evaluation accuracy, facilitating the user to execute communication transmission by reference, providing reference for the research and development of millimeter wave communication technology and facilitating the technical personnel to construct and optimize millimeter wave communication performance are achieved.
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Fig. 1 is a schematic flow chart of a millimeter wave communication performance evaluation method in a complex environment according to the present application;
fig. 2 is a schematic flow chart illustrating obtaining of environmental parameters in a millimeter wave communication performance evaluation method in a complex environment according to the present application;
fig. 3 is a schematic flow chart illustrating a calculation of correlation between a bit error rate and an environmental index in the millimeter wave communication performance evaluation method in a complex environment according to the present application;
fig. 4 is a schematic structural diagram of a millimeter wave communication performance evaluation system in a complex environment provided by the present application.
Description of reference numerals: the system comprises an environmental parameter obtaining module 11, a transmission condition obtaining module 12, an information processing executing module 13, an index analyzing and processing module 14, an evaluation model constructing module 15, an environmental parameter obtaining module 16 and an evaluation result output module 17.
Detailed Description
The application provides a millimeter wave communication performance evaluation method and system in a complex environment, which are used for solving the technical problems that in the prior art, the evaluation accuracy of millimeter wave communication performance in the complex environment is low, so that the communication transmission effectiveness of millimeter wave communication users is interfered, and meanwhile, millimeter wave communication technicians are not facilitated to construct and optimize millimeter wave signal transmission performance in reference to millimeter wave communication. The millimeter wave communication performance evaluation accuracy is improved, a user can perform communication transmission with reference, millimeter wave communication use experience of the user is improved, and technical effects of millimeter wave communication performance construction optimization of technicians are facilitated.
In the technical scheme of the invention, the acquisition, storage, use, processing and the like of the data all accord with relevant regulations of national laws and regulations.
In the following, the technical solutions in the present invention will be clearly and completely described with reference to the accompanying drawings, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments of the present invention, and it should be understood that the present invention is not limited by the example embodiments described herein. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention. It should be further noted that, for the convenience of description, only some but not all of the features relevant to the present invention are shown in the drawings.
Example one
The application provides a millimeter wave communication performance evaluation method under a complex environment, which comprises the following steps:
s100, acquiring environmental parameters of a plurality of environmental indexes in a plurality of environments for wireless communication by adopting target millimeter wave signals, and acquiring a plurality of environmental parameter sets;
further, as shown in fig. 2, the obtaining of the environmental parameters of the multiple environmental indexes in the multiple environments where the target millimeter wave signal is used for wireless communication, in the method step S100 provided by the present application, further includes:
s110, acquiring rainfall instantaneous intensity information of rainfall in a plurality of environments which adopt the target millimeter wave signals for wireless communication, and acquiring a plurality of rainfall instantaneous intensity information;
s120, collecting communication distance length information in a plurality of environments for wireless communication by adopting the target millimeter wave signal to obtain a plurality of communication distance length information;
s130, collecting raindrop size information of rainfall in a plurality of environments which adopt the target millimeter wave signals for wireless communication to obtain a plurality of raindrop size information;
and S140, acquiring a plurality of environment parameter sets according to the plurality of rainfall instantaneous intensity information, the plurality of communication distance length information and the plurality of raindrop size information.
Specifically, the millimeter wave is an electromagnetic wave between microwave and light wave, has a wavelength in the range of 1 to 10 mm, and has the characteristics of two wave spectrums of microwave and light wave. Millimeter wave communication is communication by taking millimeter wave signals as carriers for transmitting information. It should be understood that the characteristics of the millimeter wave signal are that the signal is attenuated in a complex severe weather environment, the information transmission effect is reduced, and the attenuation of the millimeter wave signal is particularly obvious in a rainfall environment.
Therefore, the present embodiment determines the influence of the environment on the millimeter wave communication performance by analyzing the communication capability of the target millimeter wave signal for performing point-to-point information transmission at different communication distances in different rainfall environments.
The environment of wireless communication refers to the information transmission distance when the target millimeter wave signals are subjected to point-to-point wireless communication and the rainfall environment information of information transmission, and the rainfall environment information of information transmission comprises the instantaneous intensity of rainfall and the size of raindrops. A plurality of environment indexes of wireless communication are correspondingly provided one by one, each wireless communication environment comprises a rainfall environment index, a raindrop environment index, a communication distance environment index and specific index parameters, each environment index has environment parameter representation environment index intensity corresponding to the environment index, the rainfall environment index corresponds to a rainfall instantaneous intensity environment parameter, the raindrop environment index corresponds to a raindrop size environment parameter, and the communication distance slow-falling index corresponds to an environment parameter set representation formed by the communication distance environment parameters.
Since the target millimeter wave signal is affected by the instantaneous intensity of rainfall, the volume of raindrops, and the point-to-point communication distance, in this embodiment, the instantaneous intensity information of rainfall in a plurality of environments in which the target millimeter wave signal is used for performing point-to-point wireless communication is collected to obtain rainfall intensity environment parameters, that is, a plurality of instantaneous intensity information of rainfall; collecting raindrop size information of rainfall in a plurality of environments which adopt the target millimeter wave signals for wireless communication, and obtaining environmental parameter information of raindrop size environmental indexes, namely a plurality of raindrop size information; the method comprises the steps of collecting communication distance length information in a plurality of environments which adopt target millimeter wave signals to carry out wireless communication, obtaining environment parameter information of communication distance environment indexes, namely a plurality of pieces of communication distance length information, and obtaining a plurality of environment parameter sets according to the environment parameter information of the plurality of environment indexes, namely a plurality of pieces of rainfall instantaneous intensity information, a plurality of pieces of communication distance length information and a plurality of pieces of raindrop size information. A plurality of wireless communication environments which adopt target millimeter wave signals for communication have environment parameter sets which have one-to-one correspondence relation with the wireless communication environments and comprise rainfall instantaneous intensity environment parameters, raindrop size environment parameters and communication distance environment parameters.
According to the embodiment, the parameter data of the target millimeter wave communication environment index corresponding to the target millimeter wave communication environment is generated according to the environment information and the communication distance information during the target millimeter wave communication, and the technical effect of providing an objective data base for subsequent analysis and determination of the influence condition of the target millimeter wave communication environment on the communication signal is achieved.
S200, acquiring a plurality of error rate information of wireless communication in the plurality of environments by adopting the target millimeter wave signal, wherein the plurality of error rate information and the plurality of environment parameter sets are in one-to-one correspondence;
specifically, the error rate is an index for measuring the accuracy of data transmission performed by data within a predetermined time, and is = error rate in transmission/total number of transmitted codes. In this embodiment, a plurality of error rate information for performing wireless communication on the target millimeter wave signal in a plurality of environments where the communication environment parameter information is collected in step S100 is acquired, where the plurality of error rate information correspond to the plurality of environments, and a one-to-one correspondence relationship exists between the plurality of environments and a plurality of environment parameter sets composed of environment parameters with different rainfall instantaneous intensities, environment parameters with raindrops sizes, and environment parameters with communication distances, so that the plurality of error rate information and the plurality of environment parameter sets correspond to one another.
According to the method and the device, the error rate information under different communication environments is obtained, and reference information is provided for the follow-up study of the complex environment on the target millimeter wave wireless communication performance so as to improve the millimeter wave communication data transmission quality.
S300, carrying out normalization processing on the plurality of environment parameter sets and the plurality of error rate information to obtain a plurality of normalization environment parameter sets and a plurality of normalization error rate information;
further, the multiple environment parameter sets and the multiple bit error rate information are normalized, and step S300 of the method provided by the present application further includes:
s310, carrying out normalization calculation processing on the environmental parameters of the environmental indexes in the environmental parameter sets, and calculating according to the following formula:
wherein ,
normalized value of j environmental parameter of i environmental index, X ij The jth environmental parameter, X, being an ith environmental indicator imin Is the minimum value of the environmental parameter, X, of the environmental index i imax The maximum value of the environmental parameter of the environmental index is i;
s320: normalizing the plurality of bit error rate information, and calculating by the following formula:
wherein ,
is a normalized value of the jth error rate information, Y j Is jth bit error rate information, Y min Is the minimum value of a plurality of error rate information, Y max Is the maximum value of a plurality of error rate information.
Specifically, in this embodiment, in order to facilitate analysis of the correlation between the environment where the target millimeter waves perform information transmission and the error rate, normalization processing is performed on the plurality of environment parameter sets and the plurality of error rate information, and data processing is performed on the environment parameters with dimensional expression and the error rate, so that the environment parameters and the error rate are converted into dimensionless expression.
In this embodiment, the data processing method for performing normalization calculation processing on the environmental parameters of the environmental indexes in the environmental parameter sets is not limited, and is preferably calculated by the following formula:
wherein ,
normalized value, X, of the jth environmental parameter of the ith environmental indicator ij Is the jth environmental parameter, X, of the ith environmental index imin Is the minimum value of the environmental parameter, X, of the environmental index i imax The maximum value of the environmental parameter of the environmental index is i; and calling environmental parameter data in each environmental index according to an environmental parameter normalization calculation formula, and calculating and conveying a normalization value of the corresponding environmental parameter.
In this embodiment, the data processing method for performing normalization processing on the plurality of bit error rate information is not limited at all, and is preferably calculated by the following formula:
wherein ,
is a normalized value of the jth error rate information, Y j Is the jth bit error rate information, Y min Is the minimum value, Y, of a plurality of error rate information max And for the maximum value of the plurality of error rate information, calling the plurality of error rate information which are in one-to-one correspondence with the environmental parameters according to an error rate information normalization calculation formula, sequencing the error rate information, obtaining the data of the minimum value and the maximum value of the error rate information, and calculating the normalization value for conveying the corresponding error rate information.
The embodiment realizes the normalized data processing of the environmental parameters and the error rate information by constructing the environmental parameter normalized calculation formula and the error rate information normalized calculation formula and calling the environmental parameter data and the error rate information data, can improve the data processing efficiency, eliminate the influence of different dimensions on data analysis, mainly pay attention to the correlation among data changes, analyze the influence of the environmental parameter changes of various environmental indexes on the millimeter wave communication quality, and achieve the technical effect of determining the correlation between the error rate and a plurality of target millimeter wave communication environments for subsequent analysis and reducing the data analysis difficulty.
S400: calculating the correlation between the error rate and the plurality of environmental indexes according to the plurality of normalized error rate information and the plurality of normalized environmental parameter sets to obtain a plurality of index correlations;
further, as shown in fig. 3, according to the plurality of normalized bit error rate information and the plurality of normalized environment parameter sets, calculating the correlation between the bit error rate and the plurality of environment indicators, in step S400 of the method provided by the present application, the method further includes:
s410: sequencing the plurality of normalized error rate information to obtain an error rate sequence;
s420, dividing and sequencing the plurality of normalized environment parameter sets according to the plurality of environment indexes to obtain a plurality of environment parameter sequences;
and S430, calculating the correlation between the plurality of environmental parameter sequences and the data in the error rate sequence one by one to obtain the plurality of index correlations.
Specifically, based on step S100, in the present embodiment, a plurality of environment indexes correspond to the plurality of environments of the wireless communication in a one-to-one correspondence manner, and specifically, each wireless communication environment includes a rainfall environment index, a raindrop environment index, and a communication distance environment index. Each environment index has an environment parameter representation environment index intensity corresponding to the environment index, a rainfall environment index corresponds to a rainfall instantaneous intensity environment parameter, a raindrop environment index corresponds to a raindrop size environment parameter, and a communication distance slow-falling index corresponds to an environment parameter set representation formed by communication distance environment parameters.
Therefore, in this embodiment, the multiple normalized environment parameter sets are divided according to the multiple environment indexes by the corresponding environment parameters, and the normalized data of each environment parameter is sorted according to the multiple environments to obtain multiple environment parameter sequences, where the multiple environment parameter sequences include a rainfall instantaneous intensity environment parameter sequence, a raindrop size environment parameter sequence, and a communication distance environment parameter sequence. And sequencing the rainfall instantaneous intensity environment parameter sequence, the raindrop size environment parameter sequence and the communication distance environment parameter sequence in the plurality of environment sequences according to the corresponding wireless millimeter wave communication environments. Meanwhile, the embodiment sorts the plurality of normalized bit error rate information according to the communication environment originally corresponding to the bit error rate information to obtain a bit error rate sequence.
And obtaining a plurality of groups of related data groups which have corresponding relation with the wireless communication environment and comprise error rate information, rainfall instantaneous intensity environment parameters, raindrop size environment parameters and communication distance environment parameters after normalization processing based on the sorting method of the environment parameters and the error rate.
And calculating the correlation between the plurality of environmental parameter sequences and the data in the error rate sequence group by group to obtain a plurality of index correlations, wherein the index correlations reflect the influence degree of different environmental parameters on the information transmission accuracy. The method for calculating the data correlation between the plurality of environment parameter sequences and the error rate sequence is not limited in any way, and can be set according to the actual millimeter wave communication performance evaluation requirement in the complex environment.
In the embodiment, the plurality of environmental parameter sequences are obtained by disassembling and sequencing the plurality of environmental index data after normalization processing based on the environmental parameter types, and the data correlation between the plurality of environmental parameter sequences and the error rate sequence is calculated, so that the technical effect of obtaining the influence degree of the environmental parameters on the information transmission performance is achieved, and a data basis is provided for estimating the target millimeter wave communication performance based on the environmental indexes subsequently.
S500, constructing a millimeter wave communication performance evaluation model according to the plurality of index correlations;
further, according to the multiple index correlations, a millimeter wave communication performance evaluation model is constructed, and the method provided by the application further includes step S500:
s510, acquiring environmental parameters of a plurality of environmental indexes of a standard environment for wireless communication of the target millimeter wave signal to obtain a standard environmental parameter set;
s520, calculating the difference values of the environmental parameters of the environmental indexes in the different sample environmental parameter sets and the standard environmental parameter set to obtain different sample environmental parameter difference value sets;
s530, carrying out weight distribution according to the correlation of the indexes to obtain a weight distribution result;
s540, performing weighted calculation on the environmental parameter difference values in the different multiple sample environmental parameter difference value sets according to the weight distribution result to obtain multiple sample weighted environmental parameter difference value sets;
s550, according to the size of the data in the weighted environment parameter difference value sets of the samples, carrying out communication performance grade evaluation to obtain communication performance grades of the samples;
s560, constructing a mapping relation between the multiple sample weighted environment parameter difference sets and the multiple sample communication performance levels, and obtaining the millimeter wave communication performance evaluation model.
Specifically, in this embodiment, a millimeter wave communication performance evaluation model is constructed according to the multiple index correlations, and the millimeter wave communication performance evaluation model is used to input the real-time environment index and predict the communication performance of the millimeter wave wireless communication environment corresponding to the real-time environment index.
The specific millimeter wave communication performance evaluation model construction method comprises the steps of obtaining a plurality of environmental indexes of the wireless communication standard environment, wherein the target millimeter wave signals are subjected to error-free code rate or low error rate, and the effectiveness and accuracy of information transmission are not affected, so that a standard environmental parameter set is obtained.
And acquiring a plurality of sample environment parameter sets of a plurality of environment indexes of different wireless communication environments with the effectiveness of error rate interference communication transmission, calculating the difference values of the environment parameters of the plurality of sample environment parameter sets and the plurality of environment indexes in the standard environment parameter set, and acquiring different plurality of sample environment parameter difference value sets.
And carrying out weight distribution on the plurality of environment indexes according to the magnitude of the plurality of index correlations to obtain a plurality of index weight distribution results, wherein the greater the index correlation is, the greater the weight value is, and carrying out weighted calculation on the environment parameter difference values in the different plurality of sample environment parameter difference value sets according to the weight distribution results to obtain a plurality of sample weighted environment parameter difference value sets.
And sorting the data size according to the data in the plurality of sample weighted environment parameter difference value sets, evaluating the communication performance grade after the data size is used for evaluating the communication performance grade, evaluating the communication performance grade according to the sorting result, and dividing to obtain a plurality of sample communication performance grades. And constructing a mapping relation between the plurality of sample weighted environment parameter difference value sets and the plurality of sample communication performance levels, and generating the millimeter wave communication performance evaluation model.
In the embodiment, a wireless communication environment in which the millimeter wave communication error-free code rate or the error rate does not affect the information transmission effectiveness is obtained as a standard communication environment, a plurality of environment parameters of a plurality of environment indexes of the plurality of standard communication environments are obtained as standard environment parameters for performing difference calculation with a plurality of sample environment parameters in which the error rate interferes with the wireless communication effectiveness, and weight distribution and weight calculation are performed based on parameter correlation data, so that a millimeter wave communication performance evaluation model is constructed, and a data processing model which can be used for accurately evaluating the millimeter wave communication performance level is obtained.
S600, acquiring environmental parameters of a plurality of environmental indexes in an environment which adopts the target millimeter wave signal for wireless communication at present, and acquiring a real-time environmental parameter set;
specifically, in this embodiment, a real-time instantaneous rainfall intensity environment parameter corresponding to a rainfall environment index, a raindrop size environment parameter corresponding to a raindrop environment index, and a communication distance environment parameter corresponding to a communication distance slow-falling index in an environment where a target millimeter wave signal is currently used for wireless communication are collected to obtain the real-time environment parameter set, and the real-time environment parameter set is used as input data to be input to the step S600 to obtain the millimeter wave communication performance evaluation model for real-time millimeter wave communication performance evaluation.
And S700, inputting the real-time environment parameter set into the millimeter wave communication performance evaluation model to obtain a millimeter wave communication performance evaluation result.
Further, the real-time environment parameter set is input into the millimeter wave communication performance evaluation model to obtain a millimeter wave communication performance evaluation result, and the method provided by the application further includes the following steps:
s710, inputting the real-time environment parameter set into the millimeter wave communication performance evaluation model, and calculating the difference value of the environment parameters of a plurality of environment indexes in the real-time environment parameter set and the standard environment parameter set to obtain a real-time environment parameter difference value set;
s720, performing weighted calculation on the environment parameter difference values in the real-time environment parameter difference value set by adopting the weight distribution result to obtain a weighted real-time environment parameter difference value set;
s730, traversing to obtain a sample weighted environment parameter difference set closest to the weighted real-time environment parameter difference set;
and S740, obtaining the communication performance grade of the sample corresponding to the real-time environment parameter set according to the mapping relation, and using the communication performance grade as the millimeter wave communication performance evaluation result.
Specifically, in this embodiment, the real-time environment parameter set obtained in step S600 is input to the millimeter wave communication performance evaluation model, differences between the real-time environment parameter set and environment parameters of multiple environment indexes in the standard environment parameter set are calculated to obtain a real-time environment parameter difference set, and the weighting calculation is performed on the environment parameter differences in the real-time environment parameter difference set by using the weight distribution result to obtain a weighted real-time environment parameter difference set.
Traversing the sample weighted environment parameter difference set, obtaining a sample weighted environment parameter difference set closest to the weighted real-time environment parameter difference set, and obtaining a sample communication performance grade corresponding to the real-time environment parameter set according to the mapping relation, wherein the sample weighted environment parameter difference set is used as the millimeter wave communication performance evaluation result.
The embodiment inputs the obtained real-time environment parameter set into a millimeter wave communication performance evaluation model, performs difference calculation on environment parameters corresponding to environment indexes in a standard environment parameter set, executes weighting calculation based on a parameter correlation weight distribution result, traverses and compares the sample weighting environment parameter difference set according to the weighting calculation result to find a closest item, and takes a sample communication performance grade of the closest item as a target millimeter wave communication performance evaluation result in a real-time environment, so that the millimeter wave communication performance evaluation model is applied to accurately obtain the target millimeter wave communication performance in the real-time environment, communication information transmission is facilitated by using a millimeter wave communication user reference, millimeter wave communication construction is facilitated by using a millimeter wave communication technician reference, and the technical effect of providing effective level attenuation margin and improving the transmission capability of millimeter wave signals in a complicated and severe environment such as rainfall is provided.
The method provided by the embodiment obtains a plurality of environment parameter sets by obtaining environment parameters of a plurality of environment indexes in a plurality of environments for wireless communication by adopting the target millimeter wave signal, and provides objective data basis for subsequent analysis and determination of the influence condition of the target millimeter wave communication environment on the communication signal; acquiring a plurality of error rate information for performing wireless communication in the plurality of environments by using the target millimeter wave signal, wherein the plurality of error rate information and the plurality of environment parameter sets are in one-to-one correspondence; normalizing the plurality of environment parameter sets and the plurality of error rate information to obtain a plurality of normalized environment parameter sets and a plurality of normalized error rate information, and providing reference information for subsequent study of complex environment on target millimeter wave wireless communication performance so as to improve millimeter wave communication data transmission quality; calculating the correlation between the error rate and the plurality of environmental indexes according to the plurality of normalized error rate information and the plurality of normalized environmental parameter sets to obtain a plurality of index correlations; constructing a millimeter wave communication performance evaluation model according to the plurality of index correlations; acquiring environmental parameters of a plurality of environmental indexes in an environment which adopts the target millimeter wave signal for wireless communication at present to obtain a real-time environmental parameter set; and inputting the real-time environment parameter set into the millimeter wave communication performance evaluation model to obtain a millimeter wave communication performance evaluation result. The technical effects of improving the millimeter wave communication performance evaluation accuracy, facilitating the user to execute communication transmission by reference, improving the millimeter wave communication use experience of the user and facilitating the technical personnel to construct and optimize the millimeter wave communication performance are achieved.
Further, the step S430 of calculating the correlations between the multiple environmental parameter sequences and the data in the bit error rate sequence one by one further includes:
s431: respectively calculating the correlation coefficients of the plurality of environmental parameter sequences and the error rate sequence to obtain a correlation coefficient set, and calculating according to the following formula:
wherein ,ζi (j) The influence correlation coefficient of the jth data in the ith environmental parameter sequence and the jth data in the error rate sequence is represented by rho which is an adjustable calculation coefficient, | x 0 (j)-x i (j) Absolute difference value between each data in each environment parameter sequence and each data in the error rate sequence, minmin | x 0 (j)-x i (j) L is two-stage minimum difference of absolute difference value of each data in the ith environment parameter sequence and each data in the error rate sequence, and max max x 0 (j)-x i (j) L is the two-stage maximum difference of the absolute difference value of each data in the ith environment parameter sequence and each data in the error rate sequence;
s432: and calculating the correlation between the plurality of environmental parameter sequences and the error rate sequence according to the correlation coefficient set to obtain the plurality of index correlations.
Specifically, the present embodiment does not limit the method for calculating the correlation between multiple environmental parameter sequences and a bit error rate sequence, and preferably, the present embodiment performs correlation analysis on the parameter information of the multiple environmental parameter sequences and the bit error rate sequence based on a gray correlation analysis method to obtain correlation coefficients of the multiple environmental parameter sequences and the bit error rate sequence, and calculates the correlation coefficients according to the following formula:
wherein ,ζi (j) The influence correlation coefficient of the jth data in the ith environmental parameter sequence and the jth data in the error rate sequence is represented by rho which is an adjustable calculation coefficient, | x 0 (j)-x i (j) | is the absolute difference value of each data in each environment parameter sequence and each data in the error rate sequence, and min | x 0 (j)-x i (j) L is the two-stage minimum difference of the absolute difference value of each data in the ith environment parameter sequence and each data in the error rate sequence, and max max x 0 (j)-x i (j) And | is the two-stage maximum difference between the absolute difference value of each data in the ith environment parameter sequence and each data in the error rate sequence.
And substituting a plurality of environment parameters and error rates of the same wireless communication environment into the formula, calculating the correlation coefficients of the plurality of environment parameter sequences and the error rate sequence group by group to obtain the correlation coefficient set, and laying a data foundation for calculating the correlation between the environment index and the error rate in the subsequent step. And calculating the correlation degrees of the plurality of environmental parameter sequences and the error rate sequence according to the correlation coefficient set to obtain a plurality of correlation degrees which are used as the plurality of index correlations.
In the embodiment, the correlation coefficient calculation formula is constructed based on the grey correlation degree, and the multiple environment parameter sequences and the error rate sequences are substituted into the correlation technique calculation formula to obtain the correlation coefficient of the correlation degree between the parameter data and the error rate data which reflect the environment indexes in the same wireless communication environment, so that the technical effect of providing data support for determining the correlation between the environment parameter sequences and the error rate sequences is achieved, and data reference is provided for the subsequent construction of the millimeter wave communication performance evaluation model.
Example two
Based on the same inventive concept as the millimeter wave communication performance evaluation method in the foregoing embodiment in a complex environment, as shown in fig. 4, the present application provides a millimeter wave communication performance evaluation system in a complex environment, where the system includes:
an environment parameter obtaining module 11, configured to obtain environment parameters of multiple environment indexes in multiple environments where wireless communication is performed by using a target millimeter wave signal, and obtain multiple environment parameter sets;
a transmission status obtaining module 12, configured to obtain multiple error rate information for performing wireless communication in the multiple environments by using the target millimeter wave signal, where the multiple error rate information corresponds to the multiple environment parameter sets one to one;
an information processing execution module 13, configured to perform normalization processing on the multiple environment parameter sets and the multiple bit error rate information, so as to obtain multiple normalized environment parameter sets and multiple normalized bit error rate information;
the index analysis processing module 14 is configured to calculate correlations between the bit error rate and the plurality of environmental indexes according to the plurality of normalized bit error rate information and the plurality of normalized environmental parameter sets, so as to obtain a plurality of index correlations;
an evaluation model construction module 15, configured to construct a millimeter wave communication performance evaluation model according to the multiple index correlations;
an environment parameter obtaining module 16, configured to acquire and obtain environment parameters of multiple environment indexes in an environment where wireless communication is currently performed using the target millimeter wave signal, and obtain a real-time environment parameter set;
and the evaluation result output module 17 is configured to input the real-time environment parameter set to the millimeter wave communication performance evaluation model, so as to obtain a millimeter wave communication performance evaluation result.
Further, the environment parameter obtaining module 11 further includes:
the rainfall information acquisition unit is used for acquiring rainfall instantaneous intensity information of rainfall in a plurality of environments which adopt the target millimeter wave signals for wireless communication, and acquiring a plurality of rainfall instantaneous intensity information;
a communication distance obtaining unit, configured to collect communication distance length information in a plurality of environments in which wireless communication is performed using the target millimeter wave signal, and obtain a plurality of pieces of communication distance length information;
a raindrop information obtaining unit, configured to collect raindrop size information of rainfall in a plurality of environments in which wireless communication is performed using the target millimeter wave signal, and obtain a plurality of raindrop size information;
and the environment parameter generating unit is used for acquiring the plurality of environment parameter sets according to the plurality of rainfall instantaneous intensity information, the plurality of communication distance length information and the plurality of raindrop size information.
Further, the information processing execution module 13 further includes:
an environment parameter processing unit, configured to perform normalization calculation processing on environment parameters of a plurality of environment indicators in the plurality of environment parameter sets, and calculate according to the following formula:
wherein ,
normalized value, X, of the jth environmental parameter of the ith environmental indicator ij Is the jth environmental parameter, X, of the ith environmental index imin Is the minimum value of the environmental parameter, X, of the environmental index i imax The maximum value of the environmental parameter of the environmental index is i;
an error rate information processing unit, configured to perform normalization processing on the plurality of error rate information, and calculate according to the following formula:
wherein ,
is a normalized value of the jth error rate information, Y j Is jth bit error rate information, Y min Is the minimum value of a plurality of error rate information, Y max Is the maximum value of a plurality of error rate information.
Further, the index analysis processing module 14 further includes:
the bit error rate sequencing execution unit is used for sequencing the plurality of normalized bit error rate information to obtain a bit error rate sequence;
the environment parameter sorting unit is used for dividing and sorting the plurality of normalized environment parameter sets according to the plurality of environment indexes to obtain a plurality of environment parameter sequences;
and the index correlation calculation unit is used for calculating the correlation between the plurality of environmental parameter sequences and the data in the error rate sequence one by one to obtain the plurality of index correlations.
Further, the index correlation calculation unit further includes:
the correlation coefficient calculation unit is configured to calculate correlation coefficients of the plurality of environmental parameter sequences and the bit error rate sequence, respectively, to obtain a correlation coefficient set, and calculate according to the following formula:
wherein ,ζi (j) The influence correlation coefficient of the jth data in the ith environmental parameter sequence and the jth data in the error rate sequence is represented by rho which is an adjustable calculation coefficient, | x 0 (j)-x i (j) | is the absolute difference value of each data in each environment parameter sequence and each data in the error rate sequence, and min | x 0 (j)-x i (j) L is the two-stage minimum difference of the absolute difference value of each data in the ith environment parameter sequence and each data in the error rate sequence, and max max x 0 (j)-x i (j) L is the two-stage maximum difference of the absolute difference value of each data in the ith environment parameter sequence and each data in the error rate sequence;
and the index correlation obtaining unit is used for calculating the correlation between the plurality of environmental parameter sequences and the error rate sequence according to the correlation coefficient set to obtain the plurality of index correlations.
Further, the evaluation model building module 15 further includes:
an environment parameter obtaining unit, configured to obtain environment parameters of multiple environment indexes of a standard environment in which the target millimeter wave signal performs wireless communication, and obtain a standard environment parameter set;
the parameter difference value calculating unit is used for calculating the difference values of the environment parameters of the plurality of environment indexes in the different sample environment parameter sets and the standard environment parameter set to obtain different sample environment parameter difference value sets;
the weight distribution execution unit is used for carrying out weight distribution according to the correlation of the indexes to obtain a weight distribution result;
the weighting processing execution unit is used for carrying out weighting calculation on the environment parameter difference values in the different multiple sample environment parameter difference value sets according to the weight distribution result to obtain multiple sample weighting environment parameter difference value sets;
the communication performance evaluation unit is used for carrying out communication performance grade evaluation according to the size of the data in the weighted environment parameter difference value sets of the samples to obtain a plurality of sample communication performance grades;
and the evaluation model construction unit is used for constructing the mapping relation between the plurality of sample weighted environment parameter difference sets and the plurality of sample communication performance levels to obtain the millimeter wave communication performance evaluation model.
Further, the evaluation result output module 17 further includes:
the evaluation model input unit is used for inputting the real-time environment parameter set into the millimeter wave communication performance evaluation model, and calculating the difference value of the environment parameters of a plurality of environment indexes in the real-time environment parameter set and the standard environment parameter set to obtain a real-time environment parameter difference value set;
the weighted calculation execution unit is used for carrying out weighted calculation on the environmental parameter difference values in the real-time environmental parameter difference value set by adopting the weight distribution result to obtain a weighted real-time environmental parameter difference value set;
the sample data acquisition unit is used for traversing to acquire a sample weighted environment parameter difference set closest to the weighted real-time environment parameter difference set;
and the evaluation result output unit is used for obtaining the sample communication performance grade corresponding to the real-time environment parameter set according to the mapping relation and taking the sample communication performance grade as the millimeter wave communication performance evaluation result.
Any of the methods or steps described above may be stored as computer instructions or programs in various non-limiting types of computer memory that are recognized by various non-limiting types of computer processors to implement any of the methods or steps described above.
Based on the above embodiments of the present invention, those skilled in the art should make any improvements and modifications to the present invention without departing from the principle of the present invention, and therefore, the present invention should fall into the protection scope of the present invention.
Claims (8)
1. A millimeter wave communication performance evaluation method under a complex environment is characterized by comprising the following steps:
acquiring environmental parameters of a plurality of environmental indexes in a plurality of environments for wireless communication by adopting target millimeter wave signals, and acquiring a plurality of environmental parameter sets;
acquiring a plurality of error rate information for wireless communication in the plurality of environments by using the target millimeter wave signal, wherein the error rate information corresponds to the environment parameter sets one by one;
normalizing the plurality of environment parameter sets and the plurality of error rate information to obtain a plurality of normalized environment parameter sets and a plurality of normalized error rate information;
calculating the correlation between the error rate and the plurality of environmental indexes according to the plurality of normalized error rate information and the plurality of normalized environmental parameter sets to obtain a plurality of index correlations;
constructing a millimeter wave communication performance evaluation model according to the plurality of index correlations;
acquiring environmental parameters of a plurality of environmental indexes in an environment which currently adopts the target millimeter wave signal for wireless communication, and acquiring a real-time environmental parameter set;
and inputting the real-time environment parameter set into the millimeter wave communication performance evaluation model to obtain a millimeter wave communication performance evaluation result.
2. The method of claim 1, wherein obtaining environmental parameters for a plurality of environmental indicators within a plurality of environments in which wireless communication is performed using target millimeter wave signals comprises:
acquiring rainfall instantaneous intensity information of rainfall in a plurality of environments which adopt the target millimeter wave signals for wireless communication to obtain a plurality of pieces of rainfall instantaneous intensity information;
collecting communication distance length information in a plurality of environments for wireless communication by adopting the target millimeter wave signal to obtain a plurality of communication distance length information;
collecting raindrop size information of rainfall in a plurality of environments which adopt the target millimeter wave signals for wireless communication, and obtaining a plurality of raindrop size information;
and obtaining the plurality of environment parameter sets according to the plurality of rainfall instantaneous intensity information, the plurality of communication distance length information and the plurality of raindrop size information.
3. The method of claim 1, wherein normalizing the plurality of sets of environmental parameters and the plurality of bit error rate information comprises:
performing normalization calculation processing on the environmental parameters of the environmental indexes in the environmental parameter sets, and calculating according to the following formula:
wherein ,
normalized value of j environmental parameter of i environmental index, X ij Is the jth environmental parameter, X, of the ith environmental index imin Is the minimum value of the environmental parameter, X, of the environmental index i imax The maximum value of the environmental parameter of the environmental index is i;
normalizing the plurality of error rate information, and calculating by the following formula:
wherein ,
is a normalized value of the jth error rate information, Y j Is jth bit error rate information, Y min Is the minimum value of a plurality of error rate information, Y max Is the maximum value of a plurality of error rate information.
4. The method of claim 1, wherein calculating a correlation between the bit error rate and the plurality of environmental indicators based on the plurality of normalized bit error rate information and the plurality of sets of normalized environmental parameters comprises:
sequencing the plurality of normalized error rate information to obtain an error rate sequence;
dividing and sequencing the plurality of normalized environment parameter sets according to the plurality of environment indexes to obtain a plurality of environment parameter sequences;
and calculating the correlation between the plurality of environmental parameter sequences and the data in the error rate sequence one by one to obtain the plurality of index correlations.
5. The method according to claim 4, wherein said individually calculating the correlation between the plurality of sequences of environment parameters and the data in the sequence of bit error rates comprises:
respectively calculating the correlation coefficients of the plurality of environmental parameter sequences and the error rate sequence to obtain a correlation coefficient set, and calculating according to the following formula:
wherein ,ζi (j) The influence correlation coefficient of the jth data in the ith environmental parameter sequence and the jth data in the error rate sequence is represented by rho which is an adjustable calculation coefficient, | x 0 (j)-x i (j) | is the absolute difference value of each data in each environment parameter sequence and each data in the error rate sequence, and min | x 0 (j)-x i (j) L is the two-stage minimum difference of the absolute difference value of each data in the ith environment parameter sequence and each data in the error rate sequence, and max max x 0 (j)-x i (j) L is the two-stage maximum difference of the absolute difference value of each data in the ith environment parameter sequence and each data in the error rate sequence;
and calculating the correlation between the plurality of environmental parameter sequences and the error rate sequence according to the correlation coefficient set to obtain the plurality of index correlations.
6. The method of claim 1, wherein constructing a millimeter wave communication performance evaluation model based on the plurality of index correlations comprises:
acquiring environmental parameters of a plurality of environmental indexes of a standard environment for wireless communication of the target millimeter wave signal, and acquiring a standard environmental parameter set;
calculating the difference values of the environmental parameters of a plurality of environmental indexes in different sample environmental parameter sets and the standard environmental parameter set to obtain different sample environmental parameter difference value sets;
according to the correlation of the indexes, carrying out weight distribution to obtain a weight distribution result;
according to the weight distribution result, carrying out weighted calculation on the environment parameter difference values in the different multiple sample environment parameter difference value sets to obtain multiple sample weighted environment parameter difference value sets;
performing communication performance grade evaluation according to the data size in the plurality of sample weighted environment parameter difference value sets to obtain a plurality of sample communication performance grades;
and constructing a mapping relation between the plurality of sample weighted environment parameter difference value sets and the plurality of sample communication performance levels to obtain the millimeter wave communication performance evaluation model.
7. The method according to claim 6, wherein inputting the real-time environment parameter set into the millimeter wave communication performance evaluation model to obtain a millimeter wave communication performance evaluation result comprises:
inputting the real-time environment parameter set into the millimeter wave communication performance evaluation model, and calculating the difference value of the environment parameters of a plurality of environment indexes in the real-time environment parameter set and the standard environment parameter set to obtain a real-time environment parameter difference value set;
performing weighted calculation on the environment parameter difference values in the real-time environment parameter difference value set by adopting the weight distribution result to obtain a weighted real-time environment parameter difference value set;
traversing to obtain a sample weighted environment parameter difference set which is closest to the weighted real-time environment parameter difference set;
and obtaining a sample communication performance grade corresponding to the real-time environment parameter set according to the mapping relation, and using the sample communication performance grade as the millimeter wave communication performance evaluation result.
8. A millimeter wave communication performance evaluation system in a complex environment, the system comprising:
the system comprises an environmental parameter obtaining module, a parameter setting module and a parameter setting module, wherein the environmental parameter obtaining module is used for obtaining environmental parameters of a plurality of environmental indexes in a plurality of environments which adopt target millimeter wave signals for wireless communication and obtaining a plurality of environmental parameter sets;
a transmission status acquisition module, configured to acquire multiple bit error rate information for performing wireless communication in the multiple environments by using the target millimeter wave signal, where the multiple bit error rate information and the multiple environment parameter sets correspond to each other one to one;
the information processing execution module is used for carrying out normalization processing on the plurality of environment parameter sets and the plurality of error rate information to obtain a plurality of normalization environment parameter sets and a plurality of normalization error rate information;
the index analysis processing module is used for calculating the correlation between the error rate and the plurality of environment indexes according to the plurality of normalized error rate information and the plurality of normalized environment parameter sets to obtain a plurality of index correlations;
the evaluation model building module is used for building a millimeter wave communication performance evaluation model according to the index correlations;
the environment parameter acquisition module is used for acquiring and acquiring environment parameters of a plurality of environment indexes in the environment which adopts the target millimeter wave signal for wireless communication at present to acquire a real-time environment parameter set;
and the evaluation result output module is used for inputting the real-time environment parameter set into the millimeter wave communication performance evaluation model to obtain a millimeter wave communication performance evaluation result.
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