CN110430000A - A kind of analysis day linearly coupled influences the method and device of digit wireless communication system - Google Patents
A kind of analysis day linearly coupled influences the method and device of digit wireless communication system Download PDFInfo
- Publication number
- CN110430000A CN110430000A CN201910730419.5A CN201910730419A CN110430000A CN 110430000 A CN110430000 A CN 110430000A CN 201910730419 A CN201910730419 A CN 201910730419A CN 110430000 A CN110430000 A CN 110430000A
- Authority
- CN
- China
- Prior art keywords
- signal
- symbol rate
- error symbol
- determining
- receiving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
-
- 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
- H04B17/345—Interference values
Landscapes
- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Noise Elimination (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
The invention discloses a kind of methods that analysis day linearly coupled influences digit wireless communication system, comprising: the reception signal of receiving end antenna is determined according to preset antenna vibration radiation model；Modulated signal and target jamming signal are determined according to the reception signal, and obtain preset white Gaussian noise signal；Corresponding same Phase Receiver signal and corresponding quadrature receiving signal are determined according to the modulated signal, the target jamming signal and the preset white Gaussian noise signal, wherein the same Phase Receiver signal and the quadrature receiving signal meet normal distribution；According to the same Phase Receiver signal and the quadrature receiving signal, the bit error rate for receiving signal is determined.It in above-mentioned method, handles signal is received, obtains same Phase Receiver signal and quadrature receiving signal, according to the same Phase Receiver signal and the quadrature receiving signal, determine the bit error rate for receiving signal, communication performance is evaluated according to the error symbol rate.
Description
Technical field
The present invention relates to fields of communication technology more particularly to a kind of analysis day linearly coupled to influence digit wireless communication system
Method and device.
Background technique
Vibration is ubiquitous in surroundings, and antenna general work is in outdoor outdoor state, the natural phenomenas such as wind, rain
The vibration of antenna can all be caused with human factors such as vehicle, machines.Its linearly coupled will lead to antenna and installation site generates relatively
Displacement, causes communication quality to decline, especially in the 5G epoch, V2V communication, the relevant wireless communication scene of industry internet,
The wavelength used is shorter just more sensitive to vibration displacement,
Its linearly coupled shakes at present to the problem of influencing mechanism of communication performance is actually a mechanical-electric coupling for antenna
Dynamic mechanical-electric coupling research focuses mostly in the structural deformation and electrical property side of active phased array antenna and large-scale reflector antenna
Face calculates the structural deformation of the vibrated generation of antenna by simulation, and then the simulating, verifying deformation is to antenna pattern, minor lobe
With the influence of the electrical properties such as beam angle, or from antenna phase noise, transmitting antenna phase noise is analyzed to system
The influence of link performance.Study the analysis influenced both for day linearly coupled on antenna electrical property itself above, and antenna conduct
The important component of communication system lacks the method for analysis day linearly coupled influence digit wireless communication system.
Summary of the invention
In view of this, the present invention provides a kind of method and device of analysis day linearly coupled influence digit wireless communication system,
To solve the problems, such as to lack a kind of method of analysis day linearly coupled influence digit wireless communication system, concrete scheme in the prior art
It is as follows:
A method of analysis day linearly coupled influences digit wireless communication system, comprising:
The reception signal of receiving end antenna is determined according to preset antenna vibration radiation model, wherein the preset day
Transmitting terminal antenna and receiving end antenna are equivalent to ideal point source in linearly coupled model, and oscillatory type is simple harmonic oscillation；
Modulated signal and target jamming signal are determined according to the reception signal, and obtain preset white Gaussian noise letter
Number；
It is determined according to the modulated signal, the target jamming signal and the preset white Gaussian noise signal corresponding
With Phase Receiver signal and corresponding quadrature receiving signal, wherein the same Phase Receiver signal and the quadrature receiving signal meet
Normal distribution；
According to the same Phase Receiver signal and the quadrature receiving signal, the bit error rate for receiving signal is determined.
Above-mentioned method optionally determines modulated signal and target jamming signal according to the reception signal, comprising:
By the reception Signal separator at carrier signal and interference signal；
The carrier signal is handled according to amplitude, carrier frequency and character rate, obtains modulated signal；
According to the carrier signal and the modulated signal determine it is dry carry ratio, according to it is described it is dry carry than with the interference signal
Determine target jamming signal.
Above-mentioned method, optionally, according to the modulated signal, the target jamming signal and the preset white Gaussian
Noise signal determines corresponding same Phase Receiver signal and corresponding quadrature receiving signal, comprising:
Identify the transmission mark of transmitting terminal；
When the transmission is identified as 0, determine that first receives signal in the same direction and determine the first quadrature receiving signal；
When the transmission is identified as 1, second is determined with Phase Receiver signal and determines the second quadrature receiving signal.
Above-mentioned method optionally determines that the first signal in the same direction that receives includes:
The modulated signal, the target jamming signal and the preset white Gaussian noise signal are summed；
Summed result is demodulated according to preset same phase function, obtains the first demodulated output signal；
Target component in first demodulated output signal estimate simultaneously according to the first Bessel function property, by institute
It states the first demodulated output signal and is converted into the described first reception signal in the same direction.
Above-mentioned method optionally determines that the second quadrature receiving signal includes:
The modulated signal, the target jamming signal and the preset white Gaussian noise signal are summed；
Summed result is demodulated according to preset orthogonal function, obtains the second demodulated output signal；
Target component in second demodulated output signal estimate simultaneously according to the first Bessel function property, by institute
It states the second demodulated output signal and is converted into the first quadrature receiving signal.
Above-mentioned method optionally according to the same Phase Receiver signal and the quadrature receiving signal, determines the reception
The bit error rate of signal, comprising:
Obtain described first in the same direction receive signal first with phase error symbol rate and described second with the second of Phase Receiver signal
With phase error symbol rate；
Obtain the first quadrature receiving signal the first orthogonal error symbol rate and the second quadrature receiving signal second
Orthogonal error symbol rate；
It is determined with phase error symbol rate with phase error symbol rate according to described first with phase error symbol rate and described second；
Orthogonal error symbol rate is determined according to the described first orthogonal error symbol rate and the second orthogonal error symbol rate；
The bit error rate for receiving signal is determined according to the same phase error symbol rate and the orthogonal error symbol rate.
A kind of analysis day linearly coupled influences the device of digit wireless communication system, comprising:
First determining module, for determining the reception signal of receiving end antenna according to preset antenna vibration radiation model,
Wherein, transmitting terminal antenna and receiving end antenna are equivalent to ideal point source in the preset antenna model of vibration, and oscillatory type is
Simple harmonic oscillation；
It determines and obtains module, for determining modulated signal and target jamming signal according to the reception signal, and obtain
Preset white Gaussian noise signal；
Second determining module, for according to the modulated signal, the target jamming signal and the preset white Gaussian
Noise signal determines corresponding same Phase Receiver signal and corresponding quadrature receiving signal, wherein the same Phase Receiver signal and institute
It states quadrature receiving signal and meets normal distribution；
Bit error rate determining module, for connecing described according to the same Phase Receiver signal and the quadrature receiving signal, determining
The bit error rate of the collection of letters number.
Above-mentioned device, optionally, the determination includes: with module is obtained
Separative unit is used for the reception Signal separator into carrier signal and interference signal；
Processing unit is adjusted for handling according to amplitude, carrier frequency and character rate the carrier signal
Signal processed；
Determination unit, for determining dry load ratio according to the carrier signal and the modulated signal, according to the dry load ratio
Target jamming signal is determined with the interference signal.
Above-mentioned device, optionally, second determining module includes:
Recognition unit, the transmission of transmitting terminal identifies for identification；
First signal receiving unit, for when the transmission is identified as 0, determining that first receives signal in the same direction and determine the
One quadrature receiving signal；
Second signal receiving unit, for when the transmission is identified as 1, determining second with Phase Receiver signal and determining the
Two quadrature receiving signals.
Above-mentioned device, optionally, the bit error rate determining module includes:
First acquisition unit receives the first of signal with phase error symbol rate and described second same for obtaining described first in the same direction
The second of Phase Receiver signal is the same as phase error symbol rate；
Second acquisition unit, the first orthogonal error symbol rate and described second for obtaining the first quadrature receiving signal is just
Second orthogonal error symbol rate of the handover collection of letters number；
First error symbol rate determination unit, for being determined with phase error symbol rate and described second with phase error symbol rate according to described first
With phase error symbol rate；
Second error symbol rate determination unit, for being determined according to the described first orthogonal error symbol rate and the second orthogonal error symbol rate
Orthogonal error symbol rate；
Third error symbol rate determination unit, for determining the reception according to the same phase error symbol rate and the orthogonal error symbol rate
The bit error rate of signal.
Compared with prior art, the present invention includes the following advantages:
The invention discloses a kind of methods that analysis day linearly coupled influences digit wireless communication system, comprising: according to default
Antenna vibration radiation model determine the reception signal of receiving end antenna；Modulated signal and target are determined according to the reception signal
Interference signal, and obtain preset white Gaussian noise signal；According to the modulated signal, the target jamming signal and described pre-
If white Gaussian noise signal determine corresponding same Phase Receiver signal and corresponding quadrature receiving signal, wherein it is described with connecting
The collection of letters number and the quadrature receiving signal meet normal distribution；According to the same Phase Receiver signal and the quadrature receiving signal,
Determine the bit error rate for receiving signal.In above-mentioned method, handles signal is received, obtain same Phase Receiver signal and just
The handover collection of letters number determines the bit error rate for receiving signal according to the same Phase Receiver signal and the quadrature receiving signal, according to
Communication performance is evaluated according to the error symbol rate.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of method flow of analysis day linearly coupled influence digit wireless communication system disclosed in the embodiment of the present application
Figure；
Fig. 2 is a kind of schematic diagram of antenna vibration radiation model disclosed in the embodiment of the present application；
Fig. 3 is antenna vibration radiation model receiving end aerial signal spectrum diagram disclosed in the embodiment of the present application；
Fig. 4 is a kind of receiver module schematic diagram of quadrature phase shift keying system disclosed in the embodiment of the present application；
Fig. 5 is that a kind of quadrature phase shift keying theory bit error rate and practical ber curve disclosed in the embodiment of the present application are illustrated
Figure；
Fig. 6 is a kind of apparatus structure of analysis day linearly coupled influence digit wireless communication system disclosed in the embodiment of the present application
Block diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
The invention discloses the method and devices that a kind of analysis day linearly coupled influences digit wireless communication system, are applied to divide
Influence of the day linearly coupled to communication performance is analysed, is set out according to existing antenna vibration radiation theory, by analyzing day linearly coupled
Caused by unwanted sideband is equivalent interferes at multitone pectination, and be deduced on this basis based on quadrature phase shift keying QPSK
The Control of Bit Error Rate of the communication system of (Quadrature Phase Shift Keying) modulation system, this method can be applied
The communication quality caused by the day linearly coupled of the commonly used digital modulation systems such as analysis 8PSK/16QAM/64QM/256QAM declines.Institute
State the execution process of analysis method as shown in Figure 1, comprising steps of
S101, the reception signal that receiving end antenna is determined according to preset antenna vibration radiation model, wherein described default
Antenna model of vibration in transmitting terminal antenna and receiving end antenna be equivalent to ideal point source, oscillatory type is simple harmonic oscillation；
In the embodiment of the present invention, the schematic diagram of the preset antenna vibration radiation model is as shown in Fig. 2, for the ease of dividing
It analyses, transmitting terminal antenna and receiving end antenna are equivalent to ideal point source in the preset antenna model of vibration, and oscillatory type is letter
Harmonic motion
Affected by vibration, transmitting terminal antenna point centered on origin O does simple harmonic oscillation.
According to Fig.2, displacement caused by vibration in practiceIfForUnit vector, therefore:
It is rightDerivation twice obtain withDirection vibration acceleration peak value
Therefore vibration accelerationIt may be expressed as:
The signal phase that B point receives are as follows:
Wherein, foCarrier frequency
ΦO′(t) it is the phase of current time transmitting terminal antenna:
ΦO′(t)=(0)+2 π f of Φot (6)
Bringing formula (2) and (6) into formula (5) can obtain:
It enablesThen
Bringing formula (3) into formula (8) can obtain:
If the amplitude at B point is VB, therefore the wave function at B point are as follows:
(10) formula of rewriting, it is known that
Whereinβ is target component, Jn(β) is Bessel function of the first kind,For antenna displacementsSide
To vibration acceleration peak value,For two antenna distancesDirection unit vector, c are the light velocity in vacuum, fvFor antenna vibration frequency.
S102, modulated signal and target jamming signal are determined according to the reception signal, and obtains preset Gauss white noise
Acoustical signal；
In the embodiment of the present invention, according to the receiving end signal VB(t) stream of modulated signal and target jamming signal is determined
Journey is as follows:
The signal of receiving end antenna B is analyzed it is found that the signal that antenna B is received is single-tone carrier signal, i.e., as n=0
Useful signal:
Vc(t)=VB·J0(β)·cos2πfot (12)
When transmitting terminal antenna A is ideal without friction, β=0, then:
Jn(β)=Jn(0)=1 (13)
By formula (12) bring into formula (10) can obtain transmitting terminal antenna A it is without friction when, signal that receiving end antenna B is received are as follows:
Vc(t)=VB·cos2πfot (14)
When n is other nonzero integers, received signal is the interference signal caused by vibrating are as follows:
Assuming thatWithIn the same direction, as transmitting terminal antenna vibration acceleration a=10m/s2, antenna vibration frequency fv=10Hz is carried
Wave frequency rate is foWhen=10GHz, the signal spectrum that receiving end antenna B is received is pectination, as shown in Figure 3.
Since transmitting terminal antenna A is affected by vibration, the signal that receiving end antenna B is received produces unwanted sideband, passes through
To reception signal time and frequency domain analysis it is found that the sideband of day linearly coupled generation symmetrical, antenna centered on signal carrier frequency
Unwanted sideband caused by vibration can be equivalent to the problem of communication system is by multitone pectination interference effect, define n-th of sideband interference
Signal power and carrier power ratio are as follows:
Define interfering signal power and carrier power ratio (dry to carry ratio) are as follows:
In the embodiment of the present invention, by taking the receiver module of QPSK system as an example, the calculating process of error symbol rate is illustrated,
Wherein, the receiver module of the QPSK system is as shown in figure 4, s in Fig. 4i(t) indicate that amplitude is A, carrier frequency fo, symbol
Rate is RsQpsk modulation signal:
si(t)=Acos (2 π fot+θi) (i=1,2,3,4) (18)
Wherein, θiCarrier phase；
Under conditions of given binary message rate, the same phase of QPSK and the quaternary character rate of quadrature branch are two
The 1/2 of binary information rate, i.e. symbol period Ts=2Tb, wherein TbFor code-element period, the item of power is always sent in Setting signal
It is the 1/2 of general power with the signal power mutually with quadrature branch under part.Table 1 is QPSK signal carrier phase and binary code, double
Bit symbol relationship.
1 QPSK signal carrier phase of table and binary code, dibit elements relationship
I (t) indicates the interference signal generated by day linearly coupled, according to dry load than calculating target jamming signal are as follows:
N (t) indicates the additive white Gaussian noise (preset white Gaussian noise) of channel, and bilateral power spectral density is No/2。
S103, it is determined according to the modulated signal, the target jamming signal and the preset white Gaussian noise signal
Corresponding same Phase Receiver signal and corresponding quadrature receiving signal, wherein the same Phase Receiver signal and quadrature receiving letter
Number meet normal distribution；
In the embodiment of the present invention, in-phase branch and quadrature branch carrier wave are respectively preset same phase function f1(t) and it is default
Orthogonal function f2(t), in which:
The modulated signal, the target jamming signal and the preset white Gaussian noise signal are admitted to QPSK simultaneously
Receiver carries out correlation demodulation and detection.
1) when transmitting terminal sends " 0 ", the road I (in-phase branch) receives signal rI0(t) are as follows:
First demodulated output signal y after coherent demodulationI0(Ts) are as follows:
Bringing formula (22) into formula (23) can obtain:
Integral is calculated, and carrier wave fo> > 1, so demodulated output signal becomes first with Phase Receiver signal:
In the embodiment of the present invention, work as fo=30GHz, antenna vibration frequency fvWhen=10Hz, vibration acceleration is respectively 0m/
QPSK Systems Theory error symbol rate and practical ber curve when s2,1m/s2,2m/s2,3m/s2,4m/s2 are as shown in figure 5, emulation
SNR ranges are -2~10dB.From figure 5 it can be seen that error symbol rate theory analysis curve and actual emulation curve are kissed substantially
It closes, under identical state of signal-to-noise, error symbol rate increases with the increase of antenna vibration acceleration, when acceleration a increases to 4m/
s2When, system error symbol rate BSR > 0.1, performance severe exacerbation, at this timeAssuming that β < 2 is
Reasonably, thus, it is supposed that β < 2, calculates and knowConclusion can be obtained:
As β < 2, | n | when > 10, | Jn(β) | ≈ 0, it may be assumed that
| n | when taking 10,2n π fvTs< < 1, therefore sin2n π fvTs≈2nπfvTs, so formula (25) becomes:
Wherein,EsFor TsInterior chip energies.
According to Bessel function of the first kind property:
Formula (27) becomes:
yI0(Ts) meet mean valueVarianceNormal distribution.
Further, when described when transmitting terminal sends " 0 ", the road Q (quadrature branch) and when the transmitting terminal sends " 1 "
Identical, the In with Phase Receiver signal and the second quadrature receiving signal processing of the first quadrature receiving signal on the road I and the road Q, second
This is repeated no more.
S104, according to the same Phase Receiver signal and the quadrature receiving signal, determine the bit error rate for receiving signal.
In the embodiment of the present invention, by taking described first with Phase Receiver signal as an example, the first of the road I is the same as phase error symbol rate are as follows:
QPSK symbol energy Es=2Eb, so formula (30) becomes:
Wherein: EbChip energies；
EsSymbol energy.
2) when transmission " 1 ", the road I second is the same as Phase Receiver signal are as follows:
yI1(Ts) meet mean valueVarianceNormal distribution.
It knows when sending " 1 ", the second of the road I is the same as phase error symbol rate are as follows:
QPSK system originator binary character " 0 " " 1 " equiprobability occurs, the same phase bit error rate of GuILu are as follows:
Binary element, in in-phase branch and quadrature branch equal-probability distribution, similarly can obtain the road Q just after serial to parallel conversion
Hand over the bit error rate are as follows:
So the bit error rate of QPSK system are as follows:
QPSK system is using gray encoding so error symbol rate are as follows:
The invention discloses a kind of methods that analysis day linearly coupled influences digit wireless communication system, comprising: according to default
Antenna vibration radiation model determine the reception signal of receiving end antenna；Modulated signal and target are determined according to the reception signal
Interference signal, and obtain preset white Gaussian noise signal；According to the modulated signal, the target jamming signal and described pre-
If white Gaussian noise signal determine corresponding same Phase Receiver signal and corresponding quadrature receiving signal, wherein it is described with connecting
The collection of letters number and the quadrature receiving signal meet normal distribution；According to the same Phase Receiver signal and the quadrature receiving signal,
Determine the bit error rate for receiving signal.In above-mentioned method, handles signal is received, obtain same Phase Receiver signal and just
The handover collection of letters number determines the bit error rate for receiving signal according to the same Phase Receiver signal and the quadrature receiving signal, according to
Communication performance is evaluated according to the error symbol rate.
Influence the method for digit wireless communication system based on a kind of above-mentioned analysis day linearly coupled, in the embodiment of the present invention,
A kind of device of analysis day linearly coupled influence digit wireless communication system is additionally provided, the structural block diagram of the analytical equipment is as schemed
Shown in 6, comprising:
First determining module 201 determines and obtains module 202, the second determining module 203 and bit error rate determining module 204
First determining module 201, for determining connecing for receiving end antenna according to preset antenna vibration radiation model
The collection of letters number, wherein transmitting terminal antenna and receiving end antenna are equivalent to ideal point source in the preset antenna model of vibration, vibration
Type is simple harmonic oscillation；
The determination and acquisition module 202, for determining modulated signal and target jamming signal according to the reception signal,
And obtain preset white Gaussian noise signal；
Second determining module 203, for according to the modulated signal, the target jamming signal and described preset
White Gaussian noise signal determines corresponding same Phase Receiver signal and corresponding quadrature receiving signal, wherein described with the collection of letters that connects
Number and the quadrature receiving signal meet normal distribution；
The bit error rate determining module 204, for determining according to the same Phase Receiver signal and the quadrature receiving signal
The bit error rate for receiving signal.
The invention discloses the devices that a kind of analysis day linearly coupled influences digit wireless communication system, comprising: according to default
Antenna vibration radiation model determine the reception signal of receiving end antenna；Modulated signal and target are determined according to the reception signal
Interference signal, and obtain preset white Gaussian noise signal；According to the modulated signal, the target jamming signal and described pre-
If white Gaussian noise signal determine corresponding same Phase Receiver signal and corresponding quadrature receiving signal, wherein it is described with connecting
The collection of letters number and the quadrature receiving signal meet normal distribution；According to the same Phase Receiver signal and the quadrature receiving signal,
Determine the bit error rate for receiving signal.In above-mentioned device, handles signal is received, obtain same Phase Receiver signal and just
The handover collection of letters number determines the bit error rate for receiving signal according to the same Phase Receiver signal and the quadrature receiving signal, according to
Communication performance is evaluated according to the error symbol rate.
In the embodiment of the present invention, the determination includes: with module 202 is obtained
Separative unit 205, processing unit 206 and determination unit 207.
Wherein,
The separative unit 205 is used for the reception Signal separator into carrier signal and interference signal；
The processing unit 206, for according to amplitude, carrier frequency and character rate to the carrier signal at
Reason, obtains modulated signal；
The determination unit 207, for determining dry load ratio according to the carrier signal and the modulated signal, according to described in
It is dry to carry than determining target jamming signal with the interference signal.
In the embodiment of the present invention, second determining module 203 includes:
Recognition unit 208, the first signal receiving unit 209 and second signal receiving unit 210.
Wherein,
The recognition unit 208, the transmission of transmitting terminal identifies for identification；
First signal receiving unit 209, for determining that first receives signal in the same direction when the transmission is identified as 0
With determining first quadrature receiving signal；
The second signal receiving unit 210, for determining second with Phase Receiver signal when the transmission is identified as 1
With determining second quadrature receiving signal.
In the embodiment of the present invention, the bit error rate determining module 204 includes:
First acquisition unit 211, second acquisition unit 212, the first error symbol rate determination unit 213, the second error symbol rate determine
Unit 214 and third error symbol rate determination unit 215.
Wherein,
First acquisition unit receives the first of signal with phase error symbol rate and described second same for obtaining described first in the same direction
The second of Phase Receiver signal is the same as phase error symbol rate；
Second acquisition unit, the first orthogonal error symbol rate and described second for obtaining the first quadrature receiving signal is just
Second orthogonal error symbol rate of the handover collection of letters number；
First error symbol rate determination unit, for being determined with phase error symbol rate and described second with phase error symbol rate according to described first
With phase error symbol rate；
Second error symbol rate determination unit, for being determined according to the described first orthogonal error symbol rate and the second orthogonal error symbol rate
Orthogonal error symbol rate；
Third error symbol rate determination unit, for determining the reception according to the same phase error symbol rate and the orthogonal error symbol rate
The bit error rate of signal.
It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment weight
Point explanation is the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
For device class embodiment, since it is basically similar to the method embodiment, so being described relatively simple, related place ginseng
See the part explanation of embodiment of the method.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
For convenience of description, it is divided into various units when description apparatus above with function to describe respectively.Certainly, implementing this
The function of each unit can be realized in the same or multiple software and or hardware when invention.
As seen through the above description of the embodiments, those skilled in the art can be understood that the present invention can
It realizes by means of software and necessary general hardware platform.Based on this understanding, technical solution of the present invention essence
On in other words the part that contributes to existing technology can be embodied in the form of software products, the computer software product
It can store in storage medium, such as ROM/RAM, magnetic disk, CD, including some instructions are used so that a computer equipment
(can be personal computer, server or the network equipment etc.) executes the certain of each embodiment or embodiment of the invention
Method described in part.
Above on a kind of method and device of analysis day linearly coupled influence digit wireless communication system provided by the present invention
It is described in detail, used herein a specific example illustrates the principle and implementation of the invention, the above reality
The explanation for applying example is merely used to help understand method and its core concept of the invention；Meanwhile for the general technology of this field
Personnel, according to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion this theory
Bright book content should not be construed as limiting the invention.
Claims (10)
1. a kind of method that analysis day linearly coupled influences digit wireless communication system characterized by comprising
The reception signal of receiving end antenna is determined according to preset antenna vibration radiation model, wherein the preset antenna vibration
Transmitting terminal antenna and receiving end antenna are equivalent to ideal point source in movable model, and oscillatory type is simple harmonic oscillation；
Modulated signal and target jamming signal are determined according to the reception signal, and obtain preset white Gaussian noise signal；
Corresponding same phase is determined according to the modulated signal, the target jamming signal and the preset white Gaussian noise signal
Receive signal and corresponding quadrature receiving signal, wherein the same Phase Receiver signal and the quadrature receiving signal meet normal state
Distribution；
According to the same Phase Receiver signal and the quadrature receiving signal, the bit error rate for receiving signal is determined.
2. the method according to claim 1, wherein determining modulated signal and target dry according to the reception signal
Disturb signal, comprising:
By the reception Signal separator at carrier signal and interference signal；
The carrier signal is handled according to amplitude, carrier frequency and character rate, obtains modulated signal；
Dry load ratio is determined according to the carrier signal and the modulated signal, according to the dry load than determining with the interference signal
Target jamming signal.
3. the method according to claim 1, wherein according to the modulated signal, the target jamming signal and
The preset white Gaussian noise signal determines corresponding same Phase Receiver signal and corresponding quadrature receiving signal, comprising:
Identify the transmission mark of transmitting terminal；
When the transmission is identified as 0, determine that first receives signal in the same direction and determine the first quadrature receiving signal；
When the transmission is identified as 1, second is determined with Phase Receiver signal and determines the second quadrature receiving signal.
4. according to the method described in claim 3, it is characterized in that, determining that the first signal in the same direction that receives includes:
The modulated signal, the target jamming signal and the preset white Gaussian noise signal are summed；
Summed result is demodulated according to preset same phase function, obtains the first demodulated output signal；
Target component in first demodulated output signal estimate and according to the first Bessel function property, by described the
One demodulated output signal is converted into described first and receives signal in the same direction.
5. according to the method described in claim 3, it is characterized in that, determining that the second quadrature receiving signal includes:
The modulated signal, the target jamming signal and the preset white Gaussian noise signal are summed；
Summed result is demodulated according to preset orthogonal function, obtains the second demodulated output signal；
Target component in second demodulated output signal estimate and according to the first Bessel function property, by described the
Two demodulated output signals are converted into the first quadrature receiving signal.
6. according to the method described in claim 3, it is characterized in that, believing according to the same Phase Receiver signal and the quadrature receiving
Number, determine the bit error rate for receiving signal, comprising:
Obtain described first in the same direction receive signal first with phase error symbol rate and described second with Phase Receiver signal the second same phase
Error symbol rate；
Obtain the first quadrature receiving signal the first orthogonal error symbol rate and the second quadrature receiving signal it is second orthogonal
Error symbol rate；
It is determined with phase error symbol rate with phase error symbol rate according to described first with phase error symbol rate and described second；
Orthogonal error symbol rate is determined according to the described first orthogonal error symbol rate and the second orthogonal error symbol rate；
The bit error rate for receiving signal is determined according to the same phase error symbol rate and the orthogonal error symbol rate.
7. the device that a kind of analysis day linearly coupled influences digit wireless communication system characterized by comprising
First determining module, for determining the reception signal of receiving end antenna according to preset antenna vibration radiation model, wherein
Transmitting terminal antenna and receiving end antenna are equivalent to ideal point source in the preset antenna model of vibration, and oscillatory type is simple harmonic quantity vibration
It is dynamic；
It determines and obtains module, for determining modulated signal and target jamming signal according to the reception signal, and obtain default
White Gaussian noise signal；
Second determining module, for according to the modulated signal, the target jamming signal and the preset white Gaussian noise
Signal determines corresponding same Phase Receiver signal and corresponding quadrature receiving signal, wherein the same Phase Receiver signal and it is described just
The handover collection of letters number meets normal distribution；
Bit error rate determining module, for determining the reception letter according to the same Phase Receiver signal and the quadrature receiving signal
Number the bit error rate.
8. device according to claim 7, which is characterized in that the determination with obtain module include:
Separative unit is used for the reception Signal separator into carrier signal and interference signal；
Processing unit obtains modulation letter for handling according to amplitude, carrier frequency and character rate the carrier signal
Number；
Determination unit, for determining dry load ratio according to the carrier signal and the modulated signal, according to the dry load ratio and institute
It states interference signal and determines target jamming signal.
9. device according to claim 7, which is characterized in that second determining module includes:
Recognition unit, the transmission of transmitting terminal identifies for identification；
First signal receiving unit, for when the transmission is identified as 0, determining that first is receiving signal and determining first just in the same direction
The handover collection of letters number；
Second signal receiving unit, for determining second with Phase Receiver signal and determining second just when the transmission is identified as 1
The handover collection of letters number.
10. device according to claim 9, which is characterized in that the bit error rate determining module includes:
First acquisition unit, first for obtaining the described first reception signal in the same direction connects together with phase error symbol rate and described second
The second of the collection of letters number is the same as phase error symbol rate；
Second acquisition unit, the first orthogonal error symbol rate and the second positive handover for obtaining the first quadrature receiving signal
Second orthogonal error symbol rate of the collection of letters number；
First error symbol rate determination unit, for determining same phase with phase error symbol rate with phase error symbol rate and described second according to described first
Error symbol rate；
Second error symbol rate determination unit, it is orthogonal for being determined according to the described first orthogonal error symbol rate and the second orthogonal error symbol rate
Error symbol rate；
Third error symbol rate determination unit, for determining the reception signal according to the same phase error symbol rate and the orthogonal error symbol rate
The bit error rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910730419.5A CN110430000B (en) | 2019-08-08 | 2019-08-08 | Method and device for analyzing influence of antenna vibration on digital wireless communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910730419.5A CN110430000B (en) | 2019-08-08 | 2019-08-08 | Method and device for analyzing influence of antenna vibration on digital wireless communication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110430000A true CN110430000A (en) | 2019-11-08 |
| CN110430000B CN110430000B (en) | 2021-06-18 |
Family
ID=68413295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910730419.5A Active CN110430000B (en) | 2019-08-08 | 2019-08-08 | Method and device for analyzing influence of antenna vibration on digital wireless communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110430000B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106126788A (en) * | 2016-06-17 | 2016-11-16 | 中国电子科技集团公司第十研究所 | Antenna mechanical-electric coupling method based on grid transmission |
| WO2018143985A1 (en) * | 2017-02-01 | 2018-08-09 | Hodges John William Jr | Apparatus, method and system for distributed chemical or biological to digital conversion to digital information using radio frequencies |
| CN108900258A (en) * | 2018-02-15 | 2018-11-27 | 中国信息通信研究院 | A method of analysis vibration influences radio signal propagation |
| CN110095242A (en) * | 2019-05-29 | 2019-08-06 | 华南理工大学 | A kind of the reflecting surface vibration detection device and method of umbrella antenna |
-
2019
- 2019-08-08 CN CN201910730419.5A patent/CN110430000B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106126788A (en) * | 2016-06-17 | 2016-11-16 | 中国电子科技集团公司第十研究所 | Antenna mechanical-electric coupling method based on grid transmission |
| WO2018143985A1 (en) * | 2017-02-01 | 2018-08-09 | Hodges John William Jr | Apparatus, method and system for distributed chemical or biological to digital conversion to digital information using radio frequencies |
| CN108900258A (en) * | 2018-02-15 | 2018-11-27 | 中国信息通信研究院 | A method of analysis vibration influences radio signal propagation |
| CN110095242A (en) * | 2019-05-29 | 2019-08-06 | 华南理工大学 | A kind of the reflecting surface vibration detection device and method of umbrella antenna |
Non-Patent Citations (1)
| Title |
|---|
| 柯熙政等: "天线振动对大气激光通信误码率影响的仿真", 《光电工程》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110430000B (en) | 2021-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103620989B (en) | Orthogonal time skewed for coherent light signal detects | |
| Atif et al. | Wi-ESP—A tool for CSI-based device-free Wi-Fi sensing (DFWS) | |
| US8107551B2 (en) | Systems and methods for signal modulation and demodulation using phase | |
| CN109451591B (en) | Transmission method of symbiotic system fusing cellular network and Internet of things | |
| US7110432B2 (en) | Orthogonal chirp modulation in multipath environments | |
| CN102007428A (en) | Passive radar for presence and motion detection | |
| CN1186389A (en) | SIR measurement apparatus | |
| WO2020163063A1 (en) | Machine learning training system and method for identification or classification of wireless signals | |
| Khaliluzzaman | Evaluation of SNR for AWGN, Rayleigh and Rician fading channels under DPSK modulation scheme with constant BER | |
| CN104601512B (en) | A kind of method and system for detecting phase modulated signal carrier wave frequency deviation | |
| CN108933626B (en) | Signal processing method and device | |
| Zhu et al. | Radio vortex for future wireless broadband communications with high capacity | |
| Kim et al. | Direction of arrival estimation based on temporal and spatial processing using a direct data domain (D/sup 3/) approach | |
| CN110430000A (en) | A kind of analysis day linearly coupled influences the method and device of digit wireless communication system | |
| CN106341123B (en) | A kind of filtering method and device of single tone jamming | |
| TWI377822B (en) | Receiver, base station and wireless transmit/receive unit | |
| US6539214B1 (en) | Method of estimating the signal to noise ratio of a digital signal received by a radiocommunications receiver | |
| CN101010871B (en) | Receiver and method for wireless communications terminal | |
| Narayana et al. | Recovering bits from thin air: Demodulation of bandpass sampled noisy signals for space iot | |
| Guan et al. | Adaptive separation of subcarrier for wireless link of satellite communication | |
| Yao et al. | Composite Broadcasting and Ranging via a Satellite Dual‐Frequency MPPSK System | |
| WO2019116980A1 (en) | Range finding device and control method | |
| Mitsugi et al. | Real-time separation of collided signals in multiple zones backscatter communication system | |
| He et al. | A novel wireless positioning approach based on distributed stochastic-resonance-enhanced power spectrum fusion technique | |
| Sackey | Performance evaluation of M-ary frequency shift keying radio modems via measurements and simulations |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 071000 No. 1559 Dongfeng Middle Road, Hebei, Baoding Applicant after: ICT Institute (Baoding) science and Technology Innovation Research Institute Co.,Ltd. Address before: 071000 Tengfei Road 299, industrial park, lotus pool, Baoding, Hebei Applicant before: BAODING TELECOMMUNICATION EQUIPMENT ANTIVIBRATION Research Institute |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 16th Floor, Baoding Zhongguancun Innovation Base R&D Center, No. 369 Huiyang Street, Jingxiu District, Baoding City, Hebei Province, 071000 Patentee after: Institute of Information and Communications Technology (Hebei) Science and Technology Innovation Research Institute Co.,Ltd. Address before: No. 1559, Dongfeng Middle Road, Baoding City, Hebei Province 071000 Patentee before: ICT Institute (Baoding) science and Technology Innovation Research Institute Co.,Ltd. |