CN116506040A - Evaluation method for signal defense of electronic equipment - Google Patents
Evaluation method for signal defense of electronic equipment Download PDFInfo
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- 238000012545 processing Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000013507 mapping Methods 0.000 claims description 21
- 238000005457 optimization Methods 0.000 claims description 19
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/20—Countermeasures against jamming
- H04K3/22—Countermeasures against jamming including jamming detection and monitoring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/80—Jamming or countermeasure characterized by its function
- H04K3/82—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection
- H04K3/825—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection by jamming
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
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Abstract
The application relates to the technical field of electronic countermeasure, and provides an evaluation method of electronic equipment signal defense, which comprises the following steps: acquiring a sample signal set, including an original sample signal set and an interference sample signal set; acquiring spread spectrum parameters and demodulation parameters of signal defense; performing spread spectrum processing on the original sample signal set, and outputting a spread spectrum signal set; reconstructing the spread spectrum signal set and outputting a demodulation signal set; comparing the demodulation signal set with the original sample signal set, and outputting a first defense index; performing anti-interference test on the first electronic equipment according to the interference sample signal set, and outputting a second defense index; and outputting a signal defense evaluation result based on the first defense index and the second defense index. The method can solve the problem of inaccurate signal defense evaluation results of the electronic equipment caused by external environment interference, and can improve the accuracy of the signal defense evaluation results of the electronic equipment.
Description
Technical Field
The application relates to the technical field of electronic countermeasure, in particular to an evaluation method for signal defense of electronic equipment.
Background
Electronic countermeasures are largely classified into electronic countermeasures, electronic interference, and electronic defense. Electronic defense refers to various electronic technical measures taken to protect own electronic devices from enemy detection, interference, location and destruction, including mainly spread spectrum technology and adaptive antenna technology. In the process of evaluating the signal defense of the electronic equipment, the external environment is complicated, the existence of interference signals is various, and the condition of inaccurate evaluation results often occurs, so that the difficulty of electronic defense is increased.
In summary, in the prior art, there is a problem that the signal defense evaluation result of the electronic device is inaccurate due to the interference of the external environment.
Disclosure of Invention
In view of the above, it is necessary to provide an evaluation method for signal defense by an electronic device.
A method of evaluating signal defense of an electronic device, the method comprising: acquiring a sample signal set of first electronic equipment, wherein the sample signal set comprises an original sample signal set and an interference sample signal set; acquiring spread spectrum parameters and demodulation parameters of the first electronic equipment for signal defense; performing spread spectrum processing on the original sample signal set according to the spread spectrum parameters, and outputting a spread spectrum signal set; reconstructing the spread spectrum signal set according to the demodulation parameters, and outputting a demodulation signal set; comparing the demodulation signal set with the original sample signal set, and outputting a first defense index according to a comparison result; performing anti-interference test on the first electronic equipment according to the interference sample signal set, and outputting a second defense index according to an anti-interference test result; and outputting a signal defense evaluation result based on the first defense index and the second defense index.
In one embodiment, further comprising: sensing external environment information of the first electronic device for receiving signals; according to the change condition of the external environment information as a mapping variable, establishing a mapping relation between the received signal and the transmitted signal of the first electronic equipment; and establishing a signal optimization model based on environment variables according to the mapping relation between the received signals and the transmitted signals of the first electronic equipment, wherein the signal optimization model optimizes the original sample signal set according to the input real-time environment information.
In one embodiment, further comprising: obtaining an optimized sample signal, wherein the optimized sample signal is a signal optimization result based on the original sample signal, and the optimized sample signal comprises the optimized sample signal received by the first electronic device and the optimized sample signal transmitted by the first electronic device; performing defense comparison analysis on the optimized sample signal received by the first electronic equipment to obtain a received defense index; performing defense comparison analysis on the optimized sample signal transmitted by the first electronic equipment to obtain a transmission defense index; and generating the first defense index according to the receiving defense index and the transmitting defense index.
In one embodiment, further comprising: copying the optimized sample signal received by the first electronic equipment, outputting a local copy signal, demodulating the local copy signal, and outputting an optimized demodulated signal set; spreading the optimized sample signal transmitted by the first electronic equipment, and outputting an optimized spread spectrum signal set; obtaining a third defense index based on the optimized demodulation signal set and the optimized spread spectrum signal set, wherein the third defense index is a defense fitness based on a real-time environment; adding the third defense index to the signal defense evaluation result.
In one embodiment, further comprising: generating a plurality of groups of sample signal sets to be detected according to the interference sample signal sets, wherein the plurality of groups of sample signal sets to be detected comprise a first group of interference sample signal sets, a second group of interference sample signal sets and a third group of interference sample signal sets; the first set of interference sample signal sets is a multi-level anti-interference test set, the second set of interference sample signal sets is a continuous anti-interference test set, and the third set of interference sample signal sets is a continuous anti-interference test set; and carrying out anti-interference test on the first electronic equipment according to the plurality of groups of sample signal sets to be tested.
In one embodiment, further comprising: the first set of interference sample signals comprises at least a number of interference signals, and each interference signal comprises a multi-level interference strength, wherein a is a positive integer greater than or equal to 2; the second set of interference sample signals at least comprises b continuous interference signals, a test interval window exists between two adjacent interference signals, and the window period of each test interval window is the same; the third set of interference sample signals at least comprises c continuous interference signals, a test interval window exists between two adjacent interference signals, and the window period of each test interval window is distributed in an acceleration sequence.
In one embodiment, further comprising: according to the multiple groups of sample signal sets to be tested, performing anti-interference test on the first electronic equipment, and outputting a multi-level anti-interference index, a continuous anti-interference index and a intermittent anti-interference index; taking the multi-level anti-interference index as an x axis, the continuous anti-interference index as a y axis and the intermittent anti-interference index as a z axis, establishing a space coordinate system, and outputting a defense recognition model; and outputting the second defense index according to the defense recognition model.
An evaluation system for signal defense of an electronic device, comprising:
the system comprises a sample signal set acquisition module, a first electronic device and a second electronic device, wherein the sample signal set acquisition module is used for acquiring a sample signal set of the first electronic device, and the sample signal set comprises an original sample signal set and an interference sample signal set;
the parameter acquisition module is used for acquiring spread spectrum parameters and demodulation parameters of the first electronic equipment for signal defense;
the spread spectrum processing module is used for performing spread spectrum processing on the original sample signal set according to the spread spectrum parameters and outputting a spread spectrum signal set;
the demodulation signal set output module is used for reconstructing the spread spectrum signal set according to the demodulation parameters and outputting a demodulation signal set;
the first defense index output module is used for comparing the demodulation signal set with the original sample signal set and outputting a first defense index according to a comparison result;
the second defense index output module is used for performing anti-interference test on the first electronic equipment according to the interference sample signal set and outputting a second defense index according to an anti-interference test result;
and the signal defense evaluation result output module is used for outputting a signal defense evaluation result based on the first defense index and the second defense index.
The evaluation method of the signal defense of the electronic equipment can solve the problem of inaccurate evaluation results of the signal defense of the electronic equipment caused by the interference of the external environment, and firstly, a sample signal set of the electronic equipment to be evaluated is obtained, wherein the sample signal set comprises an original sample signal set and an interference sample signal set; further obtaining spread spectrum parameters and demodulation parameters of the electronic equipment; performing spread spectrum processing on the original sample signal set according to the spread spectrum parameters to obtain a spread spectrum signal set; reconstructing the spread spectrum signal set according to the demodulation parameters to obtain a demodulation signal set; comparing the demodulation signal set with the original sample signal set, and obtaining a first defense index according to a comparison result; performing anti-interference test on the electronic equipment according to the interference sample signal set, and obtaining a second defense index according to an anti-interference test result; obtaining a third defense index according to the defense fitness of the electronic equipment based on the real-time environment; and constructing a space coordinate system according to the first defense index, the second defense index and the third defense index, and obtaining a signal defense evaluation result according to the space coordinate system. The accuracy of the signal defense evaluation result of the electronic equipment can be improved.
The foregoing description is merely an overview of the technical solutions of the present application, and may be implemented according to the content of the specification in order to make the technical means of the present application more clearly understood, and in order to make the above-mentioned and other objects, features and advantages of the present application more clearly understood, the following detailed description of the present application will be given.
Drawings
Fig. 1 is a schematic flow chart of an evaluation method for signal defense of an electronic device;
fig. 2 is a schematic flow chart of an anti-interference test performed in an evaluation method of signal defense of an electronic device;
fig. 3 is a schematic flow chart of outputting a second defense index in the evaluation method of signal defense of an electronic device;
fig. 4 is a schematic structural diagram of an evaluation system for signal defense of an electronic device.
Reference numerals illustrate: the system comprises a sample signal set acquisition module 1, a parameter acquisition module 2, a spread spectrum processing module 3, a demodulation signal set output module 4, a first defense index output module 5, a second defense index output module 6 and a signal defense evaluation result output module 7.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
As shown in fig. 1, the present application provides a method for evaluating signal defense of an electronic device, where the method includes:
step S100: acquiring a sample signal set of first electronic equipment, wherein the sample signal set comprises an original sample signal set and an interference sample signal set;
step S200: acquiring spread spectrum parameters and demodulation parameters of the first electronic equipment for signal defense;
in particular, a sample signal set of a first electronic device is obtained, the first electronic device being the electronic device to be subjected to a signal defense evaluation. The set of sample signals includes a set of original sample signals and a set of interfering sample signals. The original sample signal set refers to an original communication signal received and transmitted by the first electronic device, and the interference sample signal set refers to an interference signal received by the first electronic device, wherein the interference signal set comprises multiple types of sample interference signals. By obtaining the original sample signal set and the interference sample signal set, support is provided for next step of signal defense analysis.
Obtaining a spread spectrum parameter and a demodulation parameter of the first electronic device for signal defense, where the spread spectrum parameter refers to a spread spectrum mode control parameter of the first electronic device for performing spread spectrum processing, for example: the demodulation parameters refer to control parameters of the first electronic equipment for carrying out demodulation output of the copy signals. By obtaining the spread spectrum parameters and the demodulation parameters, support is provided for the next spread spectrum processing and signal demodulation output.
Step S300: performing spread spectrum processing on the original sample signal set according to the spread spectrum parameters, and outputting a spread spectrum signal set;
step S400: reconstructing the spread spectrum signal set according to the demodulation parameters, and outputting a demodulation signal set;
specifically, the original sample signal set is subjected to spread spectrum processing according to the spread spectrum parameters, the spread spectrum processing refers to waveform design of the first electronic device by using a spread spectrum technology, the original sample signal is modulated, a pseudo noise emission waveform with broadband low power density is generated, the pseudo noise emission waveform is not easy to be identified by an enemy electronic anti-reconnaissance system, and a spread spectrum signal set is obtained, and the spread spectrum signal set refers to a copy signal obtained by modulating the original sample signal. And reconstructing the spread spectrum signal set according to the demodulation parameters, namely demodulating and restoring the duplicated signals through the demodulation parameters to obtain a demodulation signal set. By obtaining the set of demodulated signals, support is provided for next step of signal defense analysis.
Step S500: comparing the demodulation signal set with the original sample signal set, and outputting a first defense index according to a comparison result;
in one embodiment, step S500 of the present application further includes:
step S510: sensing external environment information of the first electronic device for receiving signals;
step S520: according to the change condition of the external environment information as a mapping variable, establishing a mapping relation between the received signal and the transmitted signal of the first electronic equipment;
step S530: and establishing a signal optimization model based on environment variables according to the mapping relation between the received signals and the transmitted signals of the first electronic equipment, wherein the signal optimization model optimizes the original sample signal set according to the input real-time environment information.
Specifically, external environment information of the first electronic device receiving the signal is acquired, where the external environment information refers to environment information that is affected by the first electronic device receiving and sending the signal, and includes information such as environmental noise, a magnetic field, a signal interference source range of the power device, and the like. And taking the change condition of the external environment information as a mapping variable, and establishing a mapping relation of the received signal and a mapping relation of the transmitted signal of the first electronic equipment. According to the mapping relation of the received signals and the mapping relation of the transmitted signals, a signal optimization model is established, the signal optimization model comprises an environment information matching module and a signal optimization module, the environment information matching module is used for matching the corresponding mapping relation according to the fact environment information, the signal optimization module is used for optimizing the original signals according to the mapping relation, and the accuracy of the received signals and the transmitted signals can be improved by establishing the signal optimization model to optimize the received and transmitted original signals. For example: assuming that the magnetic induction intensity of the first electronic device is 10, the influence on the received signal is-6, the influence on the transmitted signal is-5, and a mapping relation between the received signal and the transmitted signal is obtained, when the original signal with the magnetic induction intensity of 10 is optimized through the signal optimization model, the received signal needs to be subjected to +6 influence, and the transmitted signal needs to be subjected to +5 influence. And optimizing the original sample signal set according to the input real-time environment information through the signal optimization model to obtain an optimized sample signal set.
In one embodiment, step S500 of the present application further includes:
step S540: obtaining an optimized sample signal, wherein the optimized sample signal is a signal optimization result based on the original sample signal, and the optimized sample signal comprises the optimized sample signal received by the first electronic device and the optimized sample signal transmitted by the first electronic device;
step S550: performing defense comparison analysis on the optimized sample signal received by the first electronic equipment to obtain a received defense index;
step S560: performing defense comparison analysis on the optimized sample signal transmitted by the first electronic equipment to obtain a transmission defense index;
step S570: and generating the first defense index according to the receiving defense index and the transmitting defense index.
Specifically, the original sample signal is optimized through the signal optimization model, and an optimized sample signal is obtained, wherein the optimized sample signal comprises an optimized sample signal received by the first electronic device and an emitted optimized sample signal. And carrying out defense comparison analysis on the received sample signals in the original sample signals and the optimized sample signals received by the first electronic equipment through a defense expert database, carrying out defense scoring to obtain original received sample signal defense scores and optimized received sample signal defense scores, and subtracting the difference value obtained by the original received sample signal defense scores from the optimized received sample signal defense scores to serve as a received defense index. The defense expert database is an electronic equipment signal defense expert system established based on artificial intelligence and the database, stores a large amount of knowledge related to electronic equipment signal defense, and can be inferred and judged according to the knowledge in the system. And then carrying out defense comparison analysis on the sample signals transmitted in the original sample signals and the optimized sample signals transmitted by the first electronic equipment by using the defense expert database to obtain transmission defense indexes. The signaling defense weight duty cycle is preset, and a specific value of the weight duty cycle can be set by a person skilled in the art based on actual environment in a custom manner, for example: the received signal defense knowledge is 60% and the transmitted signal defense is 40%. And multiplying the receiving defense index by the corresponding receiving defense weight and multiplying the transmitting defense index by the corresponding transmitting defense weight to add, and the sum is the first defense index. By generating the first defense index, the defense capability of the first electronic device under different external environment information can be intuitively displayed.
Step S600: performing anti-interference test on the first electronic equipment according to the interference sample signal set, and outputting a second defense index according to an anti-interference test result;
as shown in fig. 2, in one embodiment, step S600 of the present application further includes:
step S610: generating a plurality of groups of sample signal sets to be detected according to the interference sample signal sets, wherein the plurality of groups of sample signal sets to be detected comprise a first group of interference sample signal sets, a second group of interference sample signal sets and a third group of interference sample signal sets;
step S620: the first set of interference sample signal sets is a multi-level anti-interference test set, the second set of interference sample signal sets is a continuous anti-interference test set, and the third set of interference sample signal sets is a continuous anti-interference test set;
in one embodiment, step S620 of the present application further includes:
step S621: the first set of interference sample signals comprises at least a number of interference signals, and each interference signal comprises a multi-level interference strength, wherein a is a positive integer greater than or equal to 2;
step S622: the second set of interference sample signals at least comprises b continuous interference signals, a test interval window exists between two adjacent interference signals, and the window period of each test interval window is the same;
step S623: the third set of interference sample signals at least comprises c continuous interference signals, a test interval window exists between two adjacent interference signals, and the window period of each test interval window is distributed in an acceleration sequence.
Specifically, signal classification and extraction are performed on the interference sample signal sets to obtain a plurality of groups of sample signal sets to be detected, wherein the sample signal sets to be detected comprise a first group of interference sample signal sets, a second group of interference sample signal sets and a third group of interference sample signal sets.
The first interference sample signal set is a multi-level anti-interference test set, the interference intensities of the interference sample signals in the first interference sample signal set are different, wherein the interference signal set at least comprises a interference signals, each interference signal comprises multi-level interference intensity, and a is a positive integer greater than or equal to 2; the second set of interference sample signals is a continuous anti-interference test set, the continuous anti-interference test set at least comprises b continuous interference signals, a test interval window exists between two adjacent interference signals, and the window period of each test interval window is the same, for example: obtaining an interference sample signal every other minute; the third set of interference sample signal sets is a intermittent anti-interference test set, the third set of interference sample signal sets at least comprises c continuous interference signals, a test interval window exists between two adjacent interference signals, the window period of each test interval window is in acceleration sequence distribution, and the window period is in acceleration sequence distribution, which means that attack time of the interference signals is random. By constructing a plurality of groups of sample signal sets to be tested, support is provided for the next omnibearing anti-interference test of the first electronic equipment, and the accuracy of the anti-interference test result of the first electronic equipment can be improved.
Step S630: and carrying out anti-interference test on the first electronic equipment according to the plurality of groups of sample signal sets to be tested.
As shown in fig. 3, in one embodiment, step S630 of the present application further includes:
step S631: according to the multiple groups of sample signal sets to be tested, performing anti-interference test on the first electronic equipment, and outputting a multi-level anti-interference index, a continuous anti-interference index and a intermittent anti-interference index;
step S632: taking the multi-level anti-interference index as an x axis, the continuous anti-interference index as a y axis and the intermittent anti-interference index as a z axis, establishing a space coordinate system, and outputting a defense recognition model;
step S633: and outputting the second defense index according to the defense recognition model.
Specifically, according to the first set of interference sample signal sets, performing anti-interference tests of different interference intensities on the first electronic equipment to obtain the dynamic index of the first electronic equipment defense, namely the multi-level anti-interference index. For example: when the first electronic device can resist an interference signal with the highest signal strength of 10, the anti-interference index may be set to 10. Performing a continuity anti-interference test on the first electronic equipment according to the second interference sample signal set to obtain a continuity anti-interference index of the first electronic equipment; and performing intermittent anti-interference test on the first electronic equipment according to the third set of interference sample signals to obtain an intermittent anti-interference index of the first electronic equipment.
Constructing an anti-interference defense space coordinate system of the first electronic equipment, and constructing a defense recognition model by taking the multi-level anti-interference index as an x axis, the continuous anti-interference index as a y axis and the intermittent anti-interference index as a z axis; and inputting the multi-level anti-interference index, the continuous anti-interference index and the intermittent anti-interference index into the anti-interference defense space coordinate system. Obtaining a second defense index from the defense identification model, for example: when the defending and identifying model is used for defending and identifying, three points in an x axis, a y axis and a z axis can be connected to obtain a defending plane of the first electronic device, and the shortest distance from a coordinate origin to the defending plane is used as a second defending index. Through carrying out the anti-interference test of multilevel, continuity, intermittent to first electronic equipment, can improve the comprehensiveness of anti-interference test, avoid appearing the test blind area to improve the rate of accuracy and the rationality of anti-interference test of first electronic equipment.
Step S700: and outputting a signal defense evaluation result based on the first defense index and the second defense index.
In one embodiment, step S700 of the present application further includes:
step S710: copying the optimized sample signal received by the first electronic equipment, outputting a local copy signal, demodulating the local copy signal, and outputting an optimized demodulated signal set;
step S720: spreading the optimized sample signal transmitted by the first electronic equipment, and outputting an optimized spread spectrum signal set;
step S730: obtaining a third defense index based on the optimized demodulation signal set and the optimized spread spectrum signal set, wherein the third defense index is a defense fitness based on a real-time environment;
step S740: adding the third defense index to the signal defense evaluation result.
Specifically, the optimized sample signal received by the first electronic device is duplicated to obtain a duplicated signal, and demodulation processing is performed on the duplicated signal according to the demodulation parameters to obtain an optimized demodulation signal set. And spreading the optimized sample signal transmitted by the first electronic equipment according to the spreading parameter to obtain an optimized spread spectrum signal set. And comparing and analyzing the optimized demodulation signal set and the demodulation signal set of the original sample signal to obtain the reduction degree of the optimized demodulation signal. And comparing and analyzing the optimized spread spectrum signal set and the spread spectrum signal set of the original sample signal to obtain the optimized spread spectrum signal reduction degree. And different weight coefficients are set for the demodulation signal reduction degree and the spread spectrum signal reduction degree, and the weight coefficients can be set by a person skilled in the art in a customized manner, for example: 60% and 40%. And obtaining a third defense index according to the weight coefficient, the demodulation signal reduction degree and the spread spectrum signal reduction degree, wherein the third defense index is the defense fitness based on the real-time environment. The preset defense index duty cycle coefficients, for example: 50%, 30%, 20%, and those skilled in the art can be set in a custom manner based on practical situations, and finally obtain a signal defense evaluation result according to the first defense index, the second defense index, the third defense index and the defense index duty ratio coefficient. The method solves the problem of inaccurate signal defense evaluation results of the electronic equipment caused by external environment interference, and the accuracy of the signal defense evaluation results of the electronic equipment can be improved by performing defense tests in multiple aspects to obtain the signal defense evaluation results.
In one embodiment, as shown in fig. 4, an evaluation system for signal defense of an electronic device is provided, including: sample signal set acquisition module 1, parameter acquisition module 2, spread spectrum processing module 3, demodulation signal set output module 4, first defense index output module 5, second defense index output module 6, signal defense evaluation result output module 7, wherein:
a sample signal set acquisition module 1, where the sample signal set acquisition module 1 is configured to acquire a sample signal set of a first electronic device, where the sample signal set includes an original sample signal set and an interference sample signal set;
the parameter acquisition module 2 is used for acquiring spread spectrum parameters and demodulation parameters of the first electronic equipment for signal defense;
the spread spectrum processing module 3 is used for performing spread spectrum processing on the original sample signal set according to the spread spectrum parameters and outputting a spread spectrum signal set;
the demodulation signal set output module 4 is used for reconstructing the spread spectrum signal set according to the demodulation parameters and outputting a demodulation signal set;
the first defense index output module 5 is configured to compare the demodulated signal set with the original sample signal set, and output a first defense index according to a comparison result;
the second defense index output module 6 is configured to perform an anti-interference test on the first electronic device according to the interference sample signal set, and output a second defense index according to an anti-interference test result;
and the signal defense evaluation result output module 7 is used for outputting a signal defense evaluation result based on the first defense index and the second defense index by the signal defense evaluation result output module 7.
In one embodiment, the system further comprises:
the external environment information sensing module is used for sensing external environment information of the first electronic equipment for receiving the signal;
the mapping relation establishing module is used for establishing a mapping relation between the received signal and the transmitted signal of the first electronic equipment according to the change condition of the external environment information as a mapping variable;
the real-time environment information optimizing module is used for establishing a signal optimizing model based on environment variables according to the mapping relation between the received signals and the transmitted signals of the first electronic equipment, and the signal optimizing model optimizes the original sample signal set according to the input real-time environment information.
In one embodiment, the system further comprises:
an optimized sample signal acquisition module, configured to acquire an optimized sample signal, where the optimized sample signal is a signal optimization result based on the original sample signal, and the optimized sample signal includes an optimized sample signal received by the first electronic device and an optimized sample signal transmitted by the first electronic device;
the receiving defense index obtaining module is used for carrying out defense comparison analysis on the optimized sample signal received by the first electronic equipment to obtain a receiving defense index;
the emission defense index obtaining module is used for carrying out defense comparison analysis on the optimized sample signal emitted by the first electronic equipment to obtain an emission defense index;
and the first defense index generation module is used for generating the first defense index according to the receiving defense index and the transmitting defense index.
In one embodiment, the system further comprises:
the demodulation signal set output module is used for copying the optimized sample signal received by the first electronic equipment, outputting a local copy signal, performing demodulation processing on the local copy signal and outputting an optimized demodulation signal set;
the spread spectrum signal set output module is used for spreading the optimized sample signal transmitted by the first electronic equipment and outputting an optimized spread spectrum signal set;
the third defense index obtaining module is used for obtaining a third defense index based on the optimized demodulation signal set and the optimized spread spectrum signal set, wherein the third defense index is a defense fitness based on a real-time environment;
and the third defense index adding module is used for adding the third defense index to the signal defense evaluation result.
In one embodiment, the system further comprises:
the system comprises a sample signal set to be tested generating module, a signal processing module and a signal processing module, wherein the sample signal set to be tested generating module is used for generating a plurality of groups of sample signal sets to be tested according to the interference sample signal set, and the plurality of groups of sample signal sets to be tested comprise a first group of interference sample signal set, a second group of interference sample signal set and a third group of interference sample signal set;
the interference signal set summarizing module is used for summarizing the first group of interference sample signal sets into a multi-level anti-interference test group, the second group of interference sample signal sets into a continuous anti-interference test group and the third group of interference sample signal sets into a continuous anti-interference test group;
and the anti-interference testing module is used for carrying out anti-interference testing on the first electronic equipment according to the plurality of groups of sample signal sets to be tested.
In one embodiment, the system further comprises:
a first set of interference sample signal set obtaining modules, wherein the first set of sample signal set obtaining modules is that the first set of interference sample signal sets at least comprises a interference signals, and each interference signal comprises multi-level interference intensity, wherein a is a positive integer greater than or equal to 2;
the second set of interference sample signal set obtaining modules means that the second set of interference sample signal sets at least comprises b continuous interference signals, a test interval window exists between two adjacent interference signals, and the window period of each test interval window is the same;
the third group of interference sample signal set obtaining modules means that the third group of interference sample signal set at least comprises c continuous interference signals, a test interval window exists between two adjacent interference signals, and the window period of each test interval window is in acceleration sequence distribution.
In one embodiment, the system further comprises:
the anti-interference testing module is used for carrying out anti-interference testing on the first electronic equipment according to the plurality of groups of sample signal sets to be tested and outputting a multi-level anti-interference index, a continuous anti-interference index and a intermittent anti-interference index;
the defending and identifying model output module is used for establishing a space coordinate system by taking the multi-level anti-interference index as an x axis, the continuity anti-interference index as a y axis and the continuity anti-interference index as a z axis and outputting a defending and identifying model;
and the second defense index output module is used for outputting the second defense index according to the defense identification model.
In summary, the present application provides an evaluation method for signal defense of an electronic device, which has the following technical effects:
1. the problem that the signal defense evaluation result of the electronic equipment is inaccurate due to the interference of the external environment is solved, the signal defense evaluation result is obtained by carrying out the defense tests in multiple aspects, and the accuracy of the signal defense evaluation result of the electronic equipment can be improved.
2. The accuracy of the received signal and the transmitted signal can be improved by constructing a signal optimization model to optimize the received and transmitted original signals.
3. Through carrying out the anti-interference test of multilevel, continuity, intermittent to first electronic equipment, can improve the comprehensiveness of anti-interference test, avoid appearing the test blind area to improve the rate of accuracy and the rationality of first electronic equipment anti-interference test.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (8)
1. A method of evaluating signal defense of an electronic device, the method comprising:
acquiring a sample signal set of first electronic equipment, wherein the sample signal set comprises an original sample signal set and an interference sample signal set;
acquiring spread spectrum parameters and demodulation parameters of the first electronic equipment for signal defense;
performing spread spectrum processing on the original sample signal set according to the spread spectrum parameters, and outputting a spread spectrum signal set;
reconstructing the spread spectrum signal set according to the demodulation parameters, and outputting a demodulation signal set;
comparing the demodulation signal set with the original sample signal set, and outputting a first defense index according to a comparison result;
performing anti-interference test on the first electronic equipment according to the interference sample signal set, and outputting a second defense index according to an anti-interference test result;
and outputting a signal defense evaluation result based on the first defense index and the second defense index.
2. The method of evaluating signal defense of an electronic device of claim 1, the method further comprising:
sensing external environment information of the first electronic device for receiving signals;
according to the change condition of the external environment information as a mapping variable, establishing a mapping relation between the received signal and the transmitted signal of the first electronic equipment;
and establishing a signal optimization model based on environment variables according to the mapping relation between the received signals and the transmitted signals of the first electronic equipment, wherein the signal optimization model optimizes the original sample signal set according to the input real-time environment information.
3. The method of evaluating signal defense of an electronic device of claim 2, the method further comprising:
obtaining an optimized sample signal, wherein the optimized sample signal is a signal optimization result based on the original sample signal, and the optimized sample signal comprises the optimized sample signal received by the first electronic device and the optimized sample signal transmitted by the first electronic device;
performing defense comparison analysis on the optimized sample signal received by the first electronic equipment to obtain a received defense index;
performing defense comparison analysis on the optimized sample signal transmitted by the first electronic equipment to obtain a transmission defense index;
and generating the first defense index according to the receiving defense index and the transmitting defense index.
4. A method of evaluating signal defenses of an electronic device according to claim 3 wherein the method further comprises:
copying the optimized sample signal received by the first electronic equipment, outputting a local copy signal, demodulating the local copy signal, and outputting an optimized demodulated signal set;
spreading the optimized sample signal transmitted by the first electronic equipment, and outputting an optimized spread spectrum signal set;
obtaining a third defense index based on the optimized demodulation signal set and the optimized spread spectrum signal set, wherein the third defense index is a defense fitness based on a real-time environment;
adding the third defense index to the signal defense evaluation result.
5. The method of evaluating signal defense of an electronic device of claim 1, wherein the first electronic device is tested for immunity from the set of interference sample signals, the method further comprising:
generating a plurality of groups of sample signal sets to be detected according to the interference sample signal sets, wherein the plurality of groups of sample signal sets to be detected comprise a first group of interference sample signal sets, a second group of interference sample signal sets and a third group of interference sample signal sets;
the first set of interference sample signal sets is a multi-level anti-interference test set, the second set of interference sample signal sets is a continuous anti-interference test set, and the third set of interference sample signal sets is a continuous anti-interference test set;
and carrying out anti-interference test on the first electronic equipment according to the plurality of groups of sample signal sets to be tested.
6. The method of evaluating signal defense of an electronic device of claim 5, wherein the first set of interference sample signals comprises at least a interference signals and each interference signal comprises a multi-level interference strength, wherein a is a positive integer greater than or equal to 2;
the second set of interference sample signals at least comprises b continuous interference signals, a test interval window exists between two adjacent interference signals, and the window period of each test interval window is the same;
the third set of interference sample signals at least comprises c continuous interference signals, a test interval window exists between two adjacent interference signals, and the window period of each test interval window is distributed in an acceleration sequence.
7. The method of evaluating signal defense of an electronic device of claim 5, the method further comprising:
according to the multiple groups of sample signal sets to be tested, performing anti-interference test on the first electronic equipment, and outputting a multi-level anti-interference index, a continuous anti-interference index and a intermittent anti-interference index;
taking the multi-level anti-interference index as an x axis, the continuous anti-interference index as a y axis and the intermittent anti-interference index as a z axis, establishing a space coordinate system, and outputting a defense recognition model;
and outputting the second defense index according to the defense recognition model.
8. An evaluation system for signal defense of an electronic device, the system comprising:
the system comprises a sample signal set acquisition module, a first electronic device and a second electronic device, wherein the sample signal set acquisition module is used for acquiring a sample signal set of the first electronic device, and the sample signal set comprises an original sample signal set and an interference sample signal set;
the parameter acquisition module is used for acquiring spread spectrum parameters and demodulation parameters of the first electronic equipment for signal defense;
the spread spectrum processing module is used for performing spread spectrum processing on the original sample signal set according to the spread spectrum parameters and outputting a spread spectrum signal set;
the demodulation signal set output module is used for reconstructing the spread spectrum signal set according to the demodulation parameters and outputting a demodulation signal set;
the first defense index output module is used for comparing the demodulation signal set with the original sample signal set and outputting a first defense index according to a comparison result;
the second defense index output module is used for performing anti-interference test on the first electronic equipment according to the interference sample signal set and outputting a second defense index according to an anti-interference test result;
and the signal defense evaluation result output module is used for outputting a signal defense evaluation result based on the first defense index and the second defense index.
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