CN110086525A - A kind of the performance indicator appraisal procedure and device of S-band satellite mobile communication system - Google Patents
A kind of the performance indicator appraisal procedure and device of S-band satellite mobile communication system Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/391—Modelling the propagation channel
- H04B17/3912—Simulation models, e.g. distribution of spectral power density or received signal strength indicator [RSSI] for a given geographic region
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- H—ELECTRICITY
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- H04B7/00—Radio transmission systems, i.e. using radiation field
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- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
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- H—ELECTRICITY
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Abstract
The embodiment of the invention provides a kind of performance indicator appraisal procedure of S-band satellite mobile communication system and devices, this method comprises: receiving satellite-signal by satellite automatic tracking antenna；Obtain the characteristic ginseng value of characteristic parameter relevant to the satellite-signal；Obtain original signal；Communication process is carried out to the original signal, obtain and sends signal after processing；Channel fitting is carried out by the characteristic ginseng value, establishes simulated channel, and pass through signal after the simulated channel transmission processing；Recovery processing is carried out to signal after the processing after transmission, be restored signal；Based on the recovery signal, the performance indicator of S-band satellite mobile communication system is assessed.
Description
Technical field
The present invention relates to satellite communication fields, more particularly to a kind of performance indicator of S-band satellite mobile communication system
Appraisal procedure and device.
Background technique
Satellite communication system has cost height, construction complicated, is not easy the features such as changing compared to GCS Ground Communication System, because
This needs to carry out analogue simulation to this satellite communication system by simulation software, determine before designing satellite communication system
The performance indicator of this satellite communication system.
The satellite mobile communication system in satellite communication system has both the characteristics of satellite communication and mobile communication at present, makes to defend
Star mobile communication system is better than other means of communication, ensure that real-time, flexible, efficient communication quality, is widely used in each
The kind communications field.
The realization process of the performance indicator appraisal procedure of satellite mobile communication system in the related technology is as follows: general communication
Simulated channel obey Gauss, Rayleigh equal distribution, corresponding satellite mobile communication system mainly includes public by the mathematics of foundation
The simulated channel that formula mode is established transmits signal by the simulated channel；After carrying out recovery processing to the signal of transmission, obtain extensive
Complex signal；Determine the error amount restored between signal and original signal；It is right in the case where the margin of error is greater than the first default value
The performance indicator of satellite mobile communication system is assessed；In the case where the margin of error is less than the second preset quantity, satellite is moved
The performance indicator of dynamic communication system is assessed, wherein the first default value and the second default value can be respectively according to
Family demand is configured.
Although this mode realizes assesses the performance indicator of satellite mobile communication system, the present application
People in the implementation of the present invention, it is found that the performance indicator appraisal procedure of satellite mobile communication system in the related technology can deposit
In following problem:
Since the simulated channel of the performance indicator appraisal procedure of satellite mobile communication system in the related technology is accustomed to using
Utopian distributed model, such as Gaussian Profile, rayleigh distributed etc., and noise meet specific distribution, and this specific distribution is not
Meet satellite actual conditions, analogue simulation can be made to deviate truth, reduce the accuracy of Simulation Evaluation result.
Summary of the invention
A kind of performance indicator appraisal procedure for being designed to provide S-band satellite mobile communication system of the embodiment of the present invention
And device, the simulated channel habit that the performance indicator to solve satellite mobile communication system in the prior art assesses device use
Utopian distributed model, and the specific distribution of noise does not meet satellite actual conditions, analogue simulation can be made to deviate true
Situation, the problem of reducing the accuracy of Simulation Evaluation result.Specific technical solution is as follows:
In a first aspect, present invention implementation provides a kind of performance indicator appraisal procedure of S-band satellite mobile communication system,
The described method includes:
Satellite-signal is received by satellite automatic tracking antenna；
Obtain the characteristic ginseng value of characteristic parameter relevant to the satellite-signal；
Obtain original signal；Communication process is carried out to the original signal, obtain and sends signal after processing；
Channel fitting is carried out by the characteristic ginseng value, establishes simulated channel, and institute is transmitted by the simulated channel
State signal after handling；
Recovery processing is carried out to signal after the processing after transmission, be restored signal；
Based on the recovery signal, the performance indicator of S-band satellite mobile communication system is assessed.
It is further, described that satellite-signal is received by satellite automatic tracking antenna, comprising:
Each satellite-signal under different communication environments is received by satellite automatic tracing antenna；
The characteristic ginseng value for obtaining characteristic parameter relevant to the satellite-signal, comprising:
The characteristic ginseng value for obtaining characteristic parameter relevant to each satellite-signal, as each characteristic ginseng value；
It is described that channel fitting is carried out by the characteristic ginseng value, simulated channel is established, and pass by the simulated channel
Signal after the defeated processing, comprising:
Channel fitting is carried out parallel by each characteristic ginseng value, establishes multiple simulated channels, and by the multiple
Signal after handling described in simulated channel parallel transmission, each simulated channel in the multiple simulated channel includes: with the emulation
The corresponding characteristic ginseng value of channel；
Signal carries out recovery processing after processing after described pair of transmission, and be restored signal, comprising:
Recovery processing is carried out to signal after the processing after transmission parallel, be restored signal；
It is described to be based on the recovery signal, the performance indicator of S-band satellite mobile communication system is assessed, comprising:
Based on the recovery signal, the performance indicator of the S-band satellite mobile communication system under different communication environments is assessed.
Further, described that communication process is carried out to the original signal, it obtains and sends signal after processing, comprising:
From presetting module pond, destinations traffic processing mode is selected, the presetting module pond includes: each communication process side
Formula pond, each communication process mode pond include: two or more in coding pond, modulation pond, multiplexing pond and intertexture pond；
By the destinations traffic processing mode, communication process is carried out to the original signal, after obtaining and sending processing
Signal.
Further, the method also includes:
After the performance indicator to S-band satellite mobile communication system is assessed, it is mobile to store the S-band satellite
The data and characteristic ginseng value of the performance indicator of communication system.
Second aspect, the present invention implement to provide a kind of performance indicator assessment device of S-band satellite mobile communication system,
Include:
Half actual parameter obtains module, for receiving satellite-signal by satellite automatic tracking antenna；Acquisition is defended with described
The characteristic ginseng value of the relevant characteristic parameter of star signal；
Sending module, for obtaining original signal；Communication process is carried out to the original signal, is obtained and to simulated channel
Establish signal after module transmission is handled；
The simulated channel establishes module, for establishing simulated channel by characteristic ginseng value progress channel fitting,
And pass through signal after the simulated channel transmission processing；
The receiving module, for receive by the simulated channel transmission after processing after signal, and to the transmission after
Processing after signal carry out recovery processing, be restored signal；Based on the recovery signal, to S-band satellite mobile communication system
The performance indicator of system is assessed.
Further, half actual parameter obtains module, for receiving different propagation by satellite automatic tracing antenna
Each satellite-signal under environment；The characteristic ginseng value for obtaining characteristic parameter relevant to each satellite-signal, as each
Characteristic ginseng value；
The simulated channel establishes module, for carrying out channel fitting parallel by each characteristic ginseng value, establishes more
A simulated channel, and by signal after being handled described in the multiple simulated channel parallel transmission, in the multiple simulated channel
Each simulated channel includes: characteristic ginseng value corresponding with the simulated channel；
The receiving module, it is parallel right for being received parallel by signal after the processing after the transmission of the multiple simulated channel
Signal carries out recovery processing after processing after the transmission, and be restored signal；Based on the recovery signal, to different propagation rings
The performance indicator of S-band satellite mobile communication system under border is assessed.
Further, the sending module, is used for:
Obtain original signal；
From presetting module pond, destinations traffic processing mode is selected, the presetting module pond includes: each communication process side
Formula pond；
By the destinations traffic processing mode, communication process is carried out to the original signal, after obtaining and sending processing
Signal.
Further, described device further include:
Data memory module, for storing after the performance indicator to S-band satellite mobile communication system is assessed
The data and characteristic ginseng value of the performance indicator of the S-band satellite mobile communication system.
The third aspect, present invention implementation provide a kind of electronic equipment, including processor, communication interface, memory and logical
Believe bus, wherein processor, communication interface, memory complete mutual communication by communication bus；
Memory, for storing computer program；
Processor when for executing the program stored on memory, realizes method and step described in first aspect.
Fourth aspect, present invention implementation provide a kind of computer readable storage medium, the computer-readable storage medium
Instruction is stored in matter, when run on a computer, so that computer executes any method of above-mentioned first aspect.
The embodiment of the present invention provides the performance indicator appraisal procedure and device of a kind of S-band satellite mobile communication system, leads to
It crosses satellite automatic tracing antenna and receives satellite-signal, obtain the characteristic ginseng value of characteristic parameter relevant to satellite-signal, pass through
Characteristic ginseng value carries out channel fitting, establishes simulated channel.Since the relevant characteristic parameter of satellite-signal is automatic by satellite
Tracking antenna obtains, and belongs to measured data, is joined in this way using the feature that measurement obtains characteristic parameter relevant to satellite-signal
Numerical value establishes simulated channel, is closer to the real channel of satellite mobile communication system, so that Simulation Evaluation result is more
Adjunction is bordering on the truth of satellite mobile communication system, compared to the prior art, improves the accuracy of Simulation Evaluation result,
But also value of the Simulation Evaluation result with more application.
Certainly, implement any of the products of the present invention or method it is not absolutely required at the same reach all the above excellent
Point.
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 the process of the performance indicator appraisal procedure of S-band satellite mobile communication system provided in an embodiment of the present invention
Schematic diagram；
Fig. 2 is that the performance indicator of S-band satellite mobile communication system provided in an embodiment of the present invention assesses the structure of device
Schematic diagram；
Fig. 3 is the structural schematic diagram of the High Level Architecture system of the embodiment of the present invention；
Fig. 4 is the specific of the performance indicator appraisal procedure application of the S-band satellite mobile communication system of the embodiment of the present invention
Flow diagram；
Fig. 5 is the structural schematic diagram of electronic equipment provided in an embodiment of the present invention.
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.
Reason is used for the simulated channel habit of the performance indicator assessment device of the satellite mobile communication system of the prior art
The distributed model for wanting, and the specific distribution of noise does not meet satellite actual conditions, and analogue simulation can be made to deviate true feelings
Condition, the problem of reducing the accuracy of Simulation Evaluation result, the embodiment of the present invention provides a kind of S-band satellite mobile communication system
Performance indicator appraisal procedure and device, by satellite automatic tracing antenna receive satellite-signal, obtain it is related to satellite-signal
Characteristic parameter characteristic ginseng value, by characteristic ginseng value carry out channel fitting, establish simulated channel.Due to satellite-signal
Relevant characteristic parameter is obtained by satellite automatic tracing antenna, and measured data is belonged to, and obtains satellite using measurement in this way
The characteristic ginseng value of the relevant characteristic parameter of signal, establishes simulated channel, is closer to the true of satellite mobile communication system
Channel, so that Simulation Evaluation result is closer to the truth of satellite mobile communication system, compared to the prior art,
The accuracy of Simulation Evaluation result is improved, but also value of the Simulation Evaluation result with more application.
First below to a kind of performance indicator assessment side of S-band satellite mobile communication system provided in an embodiment of the present invention
Method is introduced.
A kind of performance indicator appraisal procedure of S-band satellite mobile communication system provided by the embodiment of the present invention, application
In electronic equipment, wherein electronic equipment can realize the S-band satellite mobile communication in the embodiment of the present invention by analogue simulation
The performance indicator appraisal procedure of system.
As shown in Figure 1, the embodiment of the present invention also provides a kind of performance indicator assessment side of S-band satellite mobile communication system
Method, method include:
Step 110, satellite-signal is received by satellite automatic tracking antenna.
Step 120, the characteristic ginseng value of characteristic parameter relevant to satellite-signal is obtained.
Wherein, the relevant characteristic parameter of satellite-signal can be, but not limited to include: satellite-signal envelope, satellite-signal
One of the pitch angle or a variety of of phase, satellite-signal.
Step 130, original signal is obtained；Communication process is carried out to original signal, obtain and sends signal after processing.
Wherein, communication process can be, but not limited to include: coding, modulation, multiplexing and interweave in it is two or more, herein not
It limits.The practical execution sequence of these communication process meets practical communication demand.
Step 140, by characteristic ginseng value carry out channel fitting, establish simulated channel, and by simulated channel transmission at
Signal after reason.
This step 140 can use C.LOO model, since the probability density of the envelope r of signal after processing is
Wherein, fr(r) probability density of the envelope r of signal after expression is handled, the envelope of signal, b after r expression processing0It indicates
Average scattering multipath power, z indicate direct signal, d0Indicate the variance of lnz, μ indicates the mean value of lnz, I0Indicate first kind zeroth order
Modified Bessel function；
Above-mentioned steps 140 further comprise: carrying out channel fitting by characteristic ginseng value, simulated channel is established, wherein believing
Road fitting is for optimization problem, and channel fitting can refer to curve matching, that is, objective function by several functions square
And composition, so f (x) is represented by
Wherein, F (b, d, μ) indicates the objective function that fitting obtains, yiFor the probability distribution of signal after processing, b, d, μ is
The fitting parameter of model, riFor the envelope value of signal, riFor a sample in r.The function is nonlinear function, therefore is used non-
Linear least square is fitted it.
The thought of nonlinear least square method is that nonlinear least square method problem is converted into linear least square to ask
Topic, passes through iterative solution.By taking F (x) as an example, solution procedure is as follows:
Primary iteration point: x1, k=1, wherein x indicates that, to fitting parameter, k indicates the number of iterations；
The first step, linearisation: fi(x) in x=xkLocate Taylor expansion, function is denoted as after omitting higher order termAt this timeIt is fi(x) in x=xkThe linear function at place, can approximation represent fi(x), wherein fi(x) it indicates about the non-linear of x
Function, xkIndicate the kth time iteration of x,F after higher order term is omitted in expressioni(x) Taylor's first approximation expansion.
Second step, derivation: being all converted into linear term for all nonlinear terms inside F (x), and then is converted into linear
Least square problem enablesWithApproximate F (x).It is rightDerivation enablesIt solves
X obtains optimum point x=x next timek+1(direction that iteration declines along F (x) value is close to a step), then, with it is new most
Based on advantage, enable F (x) in x=xk+1Locate Taylor expansion, circulation executes the two steps.Obtaining fi(x) first approximation
Afterwards, the first approximation of F (x) can be calculated, which isxk+1Indicate+1 iteration of kth of x, F (x)
Indicate objective function.
Iteration stopping condition: iteration stopping condition more than one, such as until xk+1-xkWhen < threshold value, it is believed that xk+1Make F (x)
Reach near minimum, stops iteration.Wherein, this threshold value determines x estimated accuracy and optimizes the number of process iteration.This
A threshold value can be to be configured according to user demand.
Step 150, recovery processing is carried out to signal after the processing after transmission, be restored signal；
Wherein, recovery processing can be, but not limited to include: decoding, demodulation, demultiplexing and deinterleave in it is two or more,
It is not limited here.These practical execution sequences for restoring processing meet practical communication demand, and restore actually holding for processing
Row sequence is identical as the practical execution sequence of communication process.
Step 160, based on signal is restored, the performance indicator of S-band satellite mobile communication system is assessed.
In the embodiment of the present invention, satellite-signal is received by satellite automatic tracing antenna, is obtained relevant to satellite-signal
The characteristic ginseng value of characteristic parameter carries out channel fitting by characteristic ginseng value, establishes simulated channel.Due to satellite-signal correlation
Characteristic parameter be to be obtained by satellite automatic tracing antenna, belong to measured data, in this way using measurement obtain and satellite believe
The characteristic ginseng value of number relevant characteristic parameter, establishes simulated channel, is closer to the true letter of satellite mobile communication system
Road compared to the prior art, mentions so that Simulation Evaluation result is closer to the truth of satellite mobile communication system
The high accuracy of Simulation Evaluation result, but also value of the Simulation Evaluation result with more application.
It, can be effectively by parallel computation mode in order to provide different channels to S-band satellite mobile communication system
The efficiency of S-band satellite mobile communication system is improved, it is in one possible implementation, described to pass through satellite automatic follow-up day
Line receives satellite-signal, comprising:
Each satellite-signal under different communication environments is received by satellite automatic tracing antenna；
The characteristic ginseng value for obtaining characteristic parameter relevant to satellite-signal, comprising:
The characteristic ginseng value for obtaining characteristic parameter relevant to each satellite-signal, as each characteristic ginseng value；
It is described that channel fitting is carried out by the characteristic ginseng value, simulated channel is established, and pass by the simulated channel
Signal after the defeated processing, comprising:
Channel fitting is carried out parallel by each characteristic ginseng value, establishes multiple simulated channels, and by the multiple
Signal after handling described in simulated channel parallel transmission, each simulated channel in the multiple simulated channel includes: with the emulation
The corresponding characteristic ginseng value of channel；
Signal carries out recovery processing after processing after described pair of transmission, and be restored signal, comprising:
Recovery processing is carried out to signal after the processing after transmission parallel, be restored signal；
It is described to be based on the recovery signal, the performance indicator of S-band satellite mobile communication system is assessed, comprising:
Based on the recovery signal, the performance indicator of the S-band satellite mobile communication system under different communication environments is assessed.
In the embodiment of the present invention, satellite-signal is received by satellite automatic tracing antenna, is obtained relevant to satellite-signal
The characteristic ginseng value of characteristic parameter carries out channel fitting by characteristic ginseng value parallel, establishes multiple simulated channels.Due to defend
The relevant characteristic parameter of star signal is obtained by satellite automatic tracing antenna, and measured data is belonged to, and utilizes measure in this way
To the characteristic ginseng value of the relevant characteristic parameter of satellite-signal, simulated channel is established, is closer to satellite mobile communication system
Real channel so that Simulation Evaluation result is closer to the truth of satellite mobile communication system, compared to existing
There is technology, improve the accuracy of Simulation Evaluation result, but also value of the Simulation Evaluation result with more application.Also, it can
To provide different channels to S-band satellite mobile communication system, S-band can be effectively improved by parallel computation mode and defended
The efficiency of star mobile communication system.
In order to the demand different to user, such as different scenes and different coding mode, any scene can be emulated；
Alternatively, user demand can be compared out in several ways, which is more excellent, and assessment result more prepares, a kind of possible
It is described that communication process is carried out to the original signal in implementation, it obtains and sends signal after processing, comprising:
From presetting module pond, destinations traffic processing mode is selected, the presetting module pond includes: each communication process side
Formula pond, each communication process mode pond include: two or more in coding pond, modulation pond, multiplexing pond and intertexture pond.
Wherein, destinations traffic processing mode can be the communication process mode from presetting module pond and determine required communication
Processing mode.For example, destinations traffic processing mode can be target code mode, target modulation mode, target multiplex mode and
Target interleaving mode, it is not limited here.Presetting module pond can be used for storing each communication mode.Communication process function in this way
The processing of module pondization, the description information of each communication process are saved by presetting module pond is unified, and periodically carry out maintenance and
It updates, can be adapted for different satellite protocols, select corresponding module to be emulated in presetting module pond according to protocol requirement.
Coding pond can be, but not limited to include: message sink coding pond and channel coding pond, and message sink coding pond includes advanced mostly band
Motivate (Advanced Multi-Band Excitation, abbreviation AMBE), algebraic code-excited linear predictive coding
(Algebraic Code Excited Linear Prediction, abbreviation ACELP), the audio coding standard information sources such as G.721
Coding mode, channel coding pond can be, but not limited to include: multistage, circulation, error correction, elongated digital coding (Bose,
Chaudhuri and Hocquenghem, abbreviation BCH), low density parity check code (Low Density Parity Check
Code, abbreviation LDPC), turbine code (Turbo code, abbreviation Turbo), cyclic redundancy check (Cyclic Redundancy
Check, abbreviation CRC) etc. channel coding methods, modulation pond can be, but not limited to include binary phase shift keying (Binary
Phase Shift Keying, abbreviation BPSK), quadrature phase shift keying (Quadrature Phase Shift Keying, referred to as
QPSK), 8 quadrature phase shift keying (8Phase Shift Keying, abbreviation 8PSK), four phase RPSK relative phase shift keyings
(Differential Quadrature Reference Phase Shift Keying, abbreviation DQPSK), orthogonal frequency division multiplexing
Technology (Orthogonal Frequency Division Multiplexing, abbreviation OFDM), filter bank multi-carrier
Modulation systems such as (Filter Bank Multi-Carrier, abbreviation FBMC), intertexture pond can be, but not limited to include random hand over
It knits, the interleaving modes such as matrix intersector, convolutional interleave, multiplexing pond can be, but not limited to include time division multiple acess (Time Division
Multiple Access, abbreviation TDMA), frequency division multiple access (Frequency Division Multiple Access, referred to as
The multiplex modes such as FDMA).It, can be in presetting module pond in this way by the modules progress pond processing such as coding, modulation, intertexture, multiplexing
The different simulation parameter of middle selection, to realize the emulation for the satellite for following different agreement.
By the destinations traffic processing mode, communication process is carried out to the original signal, after obtaining and sending processing
Signal.In this way the communication process to different scenes and different coding mode can be completed according to destinations traffic processing mode.
In order to realize that the direct of data of analogue simulation is automatically stored, in one possible implementation, the method
Further include:
After the performance indicator to S-band satellite mobile communication system is assessed, it is mobile to store the S-band satellite
The data and characteristic ginseng value of the performance indicator of communication system.
The data of the performance indicator of S-band satellite mobile communication system can refer to S-band satellite mobile communication system
Performance indicator carry out evaluation process in, all data, it is not limited here.
Second aspect continues with the performance indicator to S-band satellite mobile communication system provided in an embodiment of the present invention
Assessment device is introduced.
As shown in Fig. 2, a kind of performance indicator assessment of S-band satellite mobile communication system provided by the embodiment of the present invention
Device, the apparatus may include:
Half actual parameter obtains module 11, for receiving satellite-signal, acquisition and satellite by satellite automatic tracking antenna
The characteristic ginseng value of the relevant characteristic parameter of signal, the characteristic parameter for obtaining characteristic parameter relevant to the satellite-signal
Value can be, but not limited to include: the characteristic ginseng value of satellite-signal characteristic parameter and the characteristic ginseng value of antenna features parameter；
Satellite-signal characteristic parameter can be, but not limited to include: satellite-signal envelope and phase information；Antenna features parameter can with but
Be not limited to include: antenna elevation information.
The embodiment of the present invention can be realized the characteristic ginseng value of acquisition characteristic parameter relevant to satellite-signal, and the present invention is real
Applying example can be used measurement module.It is, half actual parameter obtains module 11, for being received by satellite automatic tracking antenna
Satellite-signal；Using envelope extraction method and phase extraction method, the envelope of satellite-signal and the feature ginseng of phase information are calculated
Numerical value；The elevation information of reading antenna obtains the characteristic ginseng value of the elevation information of antenna.It is conveniently obtained in this way and satellite
The characteristic ginseng value of the relevant characteristic parameter of signal, can fast and accurately obtain final result, provide for Practical Project and practice
The judgment basis of selection suitable parameters.
Sending module 12, for obtaining original signal；Communication process is carried out to original signal, obtains and is built to simulated channel
Signal after formwork erection block transmission processing.
Wherein, communication process can be, but not limited to include: coding, modulation, multiplexing and interweave in it is two or more, herein not
It limits.The practical execution sequence of these communication process meets practical communication demand, for example, sending module 12 is original for obtaining
Signal；Original signal is successively encoded, is modulated, is multiplexed and interweaved, obtained and establishes module transmission processing to simulated channel
Signal afterwards.Original signal can be better adapted to channel to be transmitted in this way, so that original signal is preferably transmitted.
Sending module 12 is used to obtain there are many acquisition modes of original signal, it is not limited here, such as: it obtains random
Number, by generating random number original signal.Not only the content of original signal is fairly simple in this way, but also original signal defends S-band
The influence of star mobile communication system is smaller.
Simulated channel establishes module 13, for carrying out channel fitting by characteristic ginseng value, establishes simulated channel, and pass through
Signal after simulated channel transmission process.Module 13 is established due to simulated channel to be used to carry out channel fitting by characteristic ginseng value,
Then illustrate that simulated channel establishes the default of module 13 and gets characteristic ginseng value, and channel fitting is carried out by characteristic ginseng value.
Receiving module 14, for receiving signal after the processing after being transmitted by simulated channel, and to believing after the processing after transmission
Number recovery processing is carried out, be restored signal；Based on restoring signal, to the performance indicator of S-band satellite mobile communication system into
Row assessment.
Wherein, recovery processing can be, but not limited to include: decoding, demodulation, demultiplexing and deinterleave in it is two or more,
It is not limited here.These practical execution sequences for restoring processing meet practical communication demand, and restore actually holding for processing
Row sequence is identical as the practical execution sequence of communication process, for example, after receiving module 14 is transmitted for reception by simulated channel
Signal after processing, and signal after the processing after transmission is successively decoded, demodulated, demultiplexed and deinterleaved, it is restored
Signal；Based on signal is restored, the performance indicator of S-band satellite mobile communication system is assessed.It in this way can be more accurate
Ground carries out signaling protein14-3-3 from simulated channel, and be restored signal.
In order to realize that the performance indicator to S-band satellite mobile communication system is assessed, the embodiment of the present invention
Restore signal for being based in above-mentioned receiving module 14, using any mode that can be assessed, to S-band satellite mobile communication system
The performance indicator of system is assessed.For example, determining the error amount restored between signal and original signal based on signal is restored；?
In the case that the margin of error is greater than default value, the performance indicator of satellite mobile communication system is assessed；It is less than in the margin of error
In the case where preset quantity, the performance indicator of satellite mobile communication system is assessed.
For another example, based on the bit error rate for restoring signal, the performance indicator of satellite mobile communication system is assessed.In this way
It can be easy to use the bit error rate, the performance indicator of satellite mobile communication system is assessed in realization.Also for example, receiving module
14, for based on the bit error rate for restoring signal, display to restore the ber curve of signal, to the performance of satellite mobile communication system
Index is assessed.It is more visually observed that the curve of the bit error rate in this way, to realize the property to satellite mobile communication system
Energy index is assessed.
In the embodiment of the present invention, half actual parameter obtains module and receives satellite-signal by satellite automatic tracing antenna, obtains
The characteristic ginseng value of characteristic parameter relevant to the satellite-signal is obtained, simulated channel establishes module and passes through characteristic ginseng value progress
Channel fitting, establishes simulated channel.Since characteristic parameter relevant to satellite-signal is obtained by satellite automatic tracing antenna
, belong to measured data, obtain the characteristic ginseng value of the relevant characteristic parameter of satellite-signal using measurement in this way, establishes emulation letter
Road is closer to the real channel of satellite mobile communication system, so that Simulation Evaluation result is closer to satellite shifting
The truth of dynamic communication system improves the accuracy of Simulation Evaluation result compared to the prior art, but also Simulation Evaluation
As a result with more the value of application.
It, can be effectively by parallel computation mode in order to provide different channels to S-band satellite mobile communication system
The efficiency of S-band satellite mobile communication system is improved, the embodiment of the present invention also provides a kind of S-band satellite mobile communication system
Performance indicator assesses device, the apparatus may include:
Half actual parameter obtains module 11, for each of being received under different communication environments by satellite automatic tracing antenna
Satellite-signal；The characteristic ginseng value for obtaining characteristic parameter relevant to each satellite-signal, as each characteristic ginseng value；
Simulated channel establishes module 13, for carrying out channel fitting parallel by each characteristic ginseng value, establishes multiple
Simulated channel, and by signal after being handled described in the multiple simulated channel parallel transmission, it is every in the multiple simulated channel
A simulated channel includes: characteristic ginseng value corresponding with the simulated channel.
In order to improve the efficiency for establishing simulated channel, due to simulated channel establish module 13 for by characteristic ginseng value simultaneously
Row carries out channel fitting, and simulated channel, which is established module 13 and can be defaulted, gets characteristic ginseng value parallel, and passes through characteristic parameter
Value carries out parallel channel fitting.
Sending module 12 can be used for obtaining original signal；Communication process is carried out to the original signal, is obtained and to imitative
True channel establishes module and sends after a processing signal after signal or the multiple processing of transmitted in parallel, sends one in sending module 12
After processing in the case where signal, and all simulated channels for establishing simulated channel parallel processing establish module, can also use
Signal is used for multiple times after by a processing, therefore simulated channel is established in module and be can wrap containing preserving module, is used for
Save signal after received processing.Sending module 12 can not have to send multiple original signals in this way, and it is mobile to reduce S-band satellite
The processing load of communication system.
Receiving module 14, for being received parallel by signal after the processing after the transmission of the multiple simulated channel, parallel to institute
Signal carries out recovery processing after processing after stating transmission, and be restored signal；Based on the recovery signal, to different communication environments
Under the performance indicator of S-band satellite mobile communication system assessed.
Module 11, sending module 12, simulated channel are obtained for above-mentioned half actual parameter and establish module 13, receiving module 14
Each module realize parallel step, can be what each module was realized, or a computing unit is respectively set in each module,
Namely each module includes a computing unit, the parallel procedure of each module is realized by the computing unit of each module, by parallel
Calculation effectively improves system effectiveness, effectively promotes the computational efficiency of entire S-band satellite mobile communication system, can be
The Specifications of different channels are obtained in the identical time.
The computing unit of each module can be formed into a parallel computation layer, may include different propagation in computing module
Scene and different noise addition algorithms, different channels are provided to S-band satellite mobile communication system, by parallel computation side
Formula can effectively improve the efficiency of S-band satellite mobile communication system.Using the computing unit of parallel computation layer, i.e., parallel meter
Tool box Parallel Computing Toolbox is calculated, the processing capacity of multi-core computer can be given full play to, without change
Code, so that it may run the same application software on computer cluster or Grid computing service, be selected not in application software
Same characteristic parameter synchronizes emulation, can obtain simultaneously under different simulated channels, the mistake of S-band satellite mobile communication system
Code rate (bit error Ratio, abbreviation BER) result.
Establishing module and receiving module for above-mentioned sending module, the simulated channel can be realized parallel with any module,
It is also possible to wantonly two module to realize parallel, can also be that three modules are realized parallel, depending on actual conditions, herein not
It is described in detail again.
In the embodiment of the present invention, half actual parameter obtains module and receives satellite-signal by satellite automatic tracing antenna, obtains
The characteristic ginseng value of characteristic parameter relevant to satellite-signal is obtained, simulated channel is established module and carried out parallel by characteristic ginseng value
Channel fitting, establishes multiple simulated channels.Since characteristic parameter relevant to satellite-signal is by satellite automatic tracing antenna
It obtains, belongs to measured data, obtain the characteristic ginseng value of the relevant characteristic parameter of satellite-signal using measurement in this way, establish imitative
True channel is closer to the real channel of satellite mobile communication system, so that Simulation Evaluation result is closer to defend
The truth of star mobile communication system improves the accuracy of Simulation Evaluation result compared to the prior art, but also emulation
Value of the assessment result with more application.And it is possible to provide different channels to S-band satellite mobile communication system, pass through
Parallel computation mode can effectively improve the efficiency of S-band satellite mobile communication system.
In order to the demand different to user, such as different scenes and different coding mode, any scene can be emulated；
Alternatively, user demand can be compared out in several ways, which is more excellent, and assessment result more prepares, the embodiment of the present invention
In sending module 12, be used for:
Obtain original signal；From presetting module pond, destinations traffic processing mode is selected；At the destinations traffic
Reason mode carries out communication process to the original signal, obtains and send signal after processing, the presetting module pond includes: each
Communication process mode pond, each communication process mode pond include: coding pond, modulation pond, multiplexing pond and intertexture pond in two kinds with
On.
Illustratively, user demand uses multiple communication process modes, and sending module 12 is specifically used for obtaining random number,
As original signal；From presetting module pond, target code mode, target modulation mode, target multiplex mode and mesh are selected
Interleaving mode is marked, the presetting module pond includes: each coding mode, each modulation system, each multiplex mode and each interleaving mode；It is logical
Two kinds are crossed in the target code mode, the target modulation mode, the target multiplex mode and the target interleaving mode
More than, the original signal is successively encoded, is modulated, is multiplexed and interweaved, signal after being handled, and send the processing
Signal afterwards.In this way the communication process to different scenes and different coding mode can be completed according to destinations traffic processing mode.
In order to realize that the direct of data of analogue simulation is automatically stored, the embodiment of the present invention also provides a kind of S-band satellite
The performance indicator of mobile communication system assesses device, which can also include:
Data memory module, for storing after the performance indicator to S-band satellite mobile communication system is assessed
The data and characteristic ginseng value of the performance indicator of the S-band satellite mobile communication system.
Data memory module can be emulation datum number storage according to library, pass through collaborative simulation framework and real-time interface (Real-
Time Interface, abbreviation RTI) interface can realize analogue simulation data directly be automatically stored.
Shown in Figure 3, the embodiment of the present invention also provides a kind of High Level Architecture (High Level
Architecture, abbreviation HLA) system, the HLA system includes: the performance indicator of above-mentioned S-band satellite mobile communication system
Assess device, wherein presetting module pond can form Simulation Application layer 21.
The tall framed tube system further include: adapter is serviced for general RTI；Adapter is also used to
State the general API service that simulated channel establishes module, wherein general RTI service can be, but not limited to include: federation management, sound
Bright management, ownership management, data publication management, time management, Object Management group；Second is that above-mentioned S-band satellite mobile communication system
The general API service of the performance indicator assessment device of system can be, but not limited to include: signal processing engine management, data space pipe
Reason, data mapping, simulated channel establish module management.The tall framed tube system further include: RTI, for being responsible for mould
Data communication between block.Above-mentioned adapter and RTI can form intermediary interface layer.
Wherein, by adapter emulation is added with the identity of a federal member in signal processing engine by intermediary interface layer 22
Federation, and object class and interactive class required for issuing and ordering, adapter establish the simulated channel of acquisition needed for module pair
As class and interactive class data according to relevant information MAP are that simulated channel establishes the input/output variable in module, and according to emulation
The control instruction of operations manager, for example sent in the form of interactive class, by simulated channel establish the API of module to signal at
Reason engine progress control accordingly such as starting, pause, continuation and termination etc..Adapter is by signal processing engine with one in this way
Simulation federation is added in the identity of federal member, and issues and order required object class and interactive class, is established by simulated channel
The API of module controls signal processing engine accordingly, such as starting, pause, continuation and termination etc..In order to which interaction is more square
Just, also for extraneous more convenient control.
The tall framed tube system further include: task control module is used for task control；Simulation analysis module,
The analysis of assessment result for emulation.It can be formed based on data memory module, task control module and simulation analysis module
Infrastructure layer 24.
The present invention provides a kind of performance indicators of S-band satellite mobile communication system to assess device, and main includes half real
Object gain of parameter module 11, Simulation Application layer 21, intermediary interface layer 22, parallel computation layer 23 and infrastructure layer 24.It will obtain
The characteristic ginseng value of characteristic parameter relevant to satellite-signal imported into Simulation Application layer 21, selected in disparate modules pond logical
Believe processing mode, after then being exported by intermediary interface layer, carries out parallel computation using parallel computation layer 23, be finally output to base
Infrastructure layer 24 is realized using different computers such as task control, simulation analysis, the functions such as data storage.
In conjunction with above-mentioned tall framed tube system, referring to fig. 4, the concrete application of the embodiment of the present invention is as follows:
Step 210, satellite-signal is received by satellite automatic tracking antenna, obtains characteristic parameter relevant to satellite-signal
Characteristic ginseng value.
Step 220, the characteristic ginseng value of characteristic parameter relevant to satellite-signal is imported in channel pool, carries out S-band
The performance indicator of satellite mobile communication system assesses device initialization；Wherein channel pool can be, but not limited to include Gaussian channel,
The classics channel such as Rayleigh channel, Rice channel.
Step 230, federal member data initialization.
Step 240, communication process mode needed for being selected from module pond according to satellite protocol, such as message sink coding pond, channel
Coding pond, modulation pond, multiplexing pond, intertexture pond are accordingly selected according to satellite protocol, and there are many each ponds, and mode is selective, leads to
Cross simulation process sequential selection coding mode, modulation system, multiplex mode, interleaving mode.
Step 250, it creates federal member and simulation federation is added, by signal processing engine with the identity of a federal member
Simulation federation is added, and issues and order required object class and interactive class.
Step 260, the characteristic ginseng value of characteristic parameter relevant to satellite-signal is imported in channel pool.
Step 270, using the processing capacity of multi-core computer, simulated channel provides different propagation scenes and different noises
Addition is accordingly emulated, and ber curve is obtained, while obtaining the simulation result under different channels, assesses different communication environments
Under S-band satellite mobile communication system performance indicator.The general bit error rate is greater than -5db, then assesses under different communication environments
S-band satellite mobile communication system is that performance indicator is bad.
Step 280, simulation federation is exited or cancels, wherein the task control of simulation process, simulation analysis, data storage etc.
Function executes on three computers respectively.Wherein, for realizing the S-band satellite mobile communication system in the embodiment of the present invention
Performance indicator appraisal procedure during, can be by the task control of analogue simulation, simulation analysis, the tasks point such as data storage
Three computers of dispensing, wherein the function of task control mainly formulates artificial tasks, and design objective input control interface；It is imitative
True analytic function is mainly simulation engine, and the performance indicator assessment device of this S-band satellite mobile communication system is mainly using letter
Number processing module is as simulation engine.Data storage function can be emulation datum number storage according to library.
In the embodiment of the present invention, half actual parameter obtains module and receives satellite-signal by satellite automatic tracing antenna, obtains
The characteristic ginseng value of characteristic parameter relevant to satellite-signal is obtained, simulated channel establishes module and carries out channel by characteristic ginseng value
Fitting, establishes simulated channel.Since the relevant characteristic parameter of satellite-signal is obtained by satellite automatic tracing antenna, belong to
Measured data obtains the characteristic ginseng value of characteristic parameter relevant to satellite-signal using measurement in this way, establishes simulated channel, more
Adjunction is bordering on the real channel of satellite mobile communication system, so that Simulation Evaluation result is closer to satellite mobile communication
The truth of system improves the accuracy of Simulation Evaluation result compared to the prior art, but also Simulation Evaluation result is more
Value with application.
It continues with and electronic equipment provided in an embodiment of the present invention is introduced.
The embodiment of the invention also provides a kind of electronic equipment, as shown in figure 5, including processor 31, communication interface 32, depositing
Reservoir 33 and communication bus 34, wherein processor 31, communication interface 32, memory 33 are completed each other by communication bus 34
Communication,
Memory 33, for storing computer program；
Processor 31 when for executing the program stored on memory 33, realizes following steps:
Satellite-signal is received by satellite automatic tracking antenna；
Obtain the characteristic ginseng value of characteristic parameter relevant to satellite-signal；
Obtain original signal；Communication process is carried out to the original signal, obtain and sends signal after processing；
Channel fitting is carried out by the characteristic ginseng value, establishes simulated channel, and institute is transmitted by the simulated channel
State signal after handling；
Recovery processing is carried out to signal after the processing after transmission, be restored signal；
Based on the recovery signal, the performance indicator of S-band satellite mobile communication system is assessed.
The communication bus that above-mentioned electronic equipment is mentioned can be PCI (Peripheral Component
Interconnect, Peripheral Component Interconnect standard) bus or EISA (Extended Industry Standard
Architecture, expanding the industrial standard structure) bus etc..The communication bus can be divided into address bus, data/address bus, control
Bus etc..Only to be indicated with a thick line in figure convenient for indicating, it is not intended that an only bus or a type of total
Line.
Communication interface is for the communication between above-mentioned electronic equipment and other equipment.
Memory may include RAM (Random Access Memory, random access memory), also may include NVM
(Non-Volatile Memory, nonvolatile memory), for example, at least a magnetic disk storage.Optionally, memory may be used also
To be storage device that at least one is located remotely from aforementioned processor.
Above-mentioned processor can be general processor, including CPU (Central Processing Unit, central processing
Device), NP (Network Processor, network processing unit) etc.；Can also be DSP (Digital Signal Processing,
Digital signal processor), ASIC (Application Specific Integrated Circuit, specific integrated circuit),
FPGA (Field-Programmable Gate Array, field programmable gate array) or other programmable logic device are divided
Vertical door or transistor logic, discrete hardware components.
Method provided in an embodiment of the present invention can be applied to electronic equipment.Specifically, the electronic equipment can be with are as follows: can
It realizes the desktop computer of analogue simulation, can be realized the portable computer of analogue simulation, can be realized the clothes of analogue simulation
Business device etc..It is not limited thereto, it is any that electronic equipment of the invention may be implemented, it all belongs to the scope of protection of the present invention.
The embodiment of the invention provides a kind of computer readable storage medium, computer journey is stored in the storage medium
Sequence, the computer program realize the performance indicator assessment of above-mentioned S-band satellite mobile communication system when being executed by processor
The step of method.
The embodiment of the invention provides a kind of computer program products comprising instruction, when run on a computer,
So that computer executes the step of performance indicator appraisal procedure of above-mentioned S-band satellite mobile communication system.
The embodiment of the invention provides a kind of computer programs, when run on a computer, so that computer executes
The step of performance indicator appraisal procedure of above-mentioned S-band satellite mobile communication system.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Each embodiment in this specification is all made of relevant mode and describes, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for device/
For electronic equipment/storage medium/computer program product/computer program embodiments comprising instruction, due to its basic phase
It is similar to embodiment of the method, so being described relatively simple, the relevent part can refer to the partial explaination of embodiments of method.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (9)
1. a kind of performance indicator appraisal procedure of S-band satellite mobile communication system, which is characterized in that the described method includes:
Satellite-signal is received by satellite automatic tracking antenna；
Obtain the characteristic ginseng value of characteristic parameter relevant to the satellite-signal；
Obtain original signal；Communication process is carried out to the original signal, obtain and sends signal after processing；
Channel fitting is carried out by the characteristic ginseng value, establishes simulated channel, and the place is transmitted by the simulated channel
Signal after reason；
Recovery processing is carried out to signal after the processing after transmission, be restored signal；
Based on the recovery signal, the performance indicator of S-band satellite mobile communication system is assessed.
2. the method as described in claim 1, which is characterized in that it is described that satellite-signal is received by satellite automatic tracking antenna,
Include:
Each satellite-signal under different communication environments is received by satellite automatic tracing antenna；
The characteristic ginseng value for obtaining characteristic parameter relevant to the satellite-signal, comprising:
The characteristic ginseng value for obtaining characteristic parameter relevant to each satellite-signal, as each characteristic ginseng value；
It is described that channel fitting is carried out by the characteristic ginseng value, simulated channel is established, and institute is transmitted by the simulated channel
State signal after handling, comprising:
Channel fitting is carried out parallel by each characteristic ginseng value, establishes multiple simulated channels, and pass through the multiple emulation
Channel parallel transmits signal after the processing, and each simulated channel in the multiple simulated channel includes: with the simulated channel
Corresponding characteristic ginseng value；
Signal carries out recovery processing after processing after described pair of transmission, and be restored signal, comprising:
Recovery processing is carried out to signal after the processing after transmission parallel, be restored signal；
It is described to be based on the recovery signal, the performance indicator of S-band satellite mobile communication system is assessed, comprising: be based on
The recovery signal assesses the performance indicator of the S-band satellite mobile communication system under different communication environments.
3. method according to claim 1 or 2, which is characterized in that it is described that communication process is carried out to the original signal, it obtains
And send signal after processing, comprising:
From presetting module pond, destinations traffic processing mode is selected, the presetting module pond includes: each communication process mode
Pond, each communication process mode pond include: two or more in coding pond, modulation pond, multiplexing pond and intertexture pond；
By the destinations traffic processing mode, communication process is carried out to the original signal, obtains and sends signal after processing.
4. the method as described in claim 1, which is characterized in that the method also includes:
After the performance indicator to S-band satellite mobile communication system is assessed, the S-band satellite mobile communication is stored
The data and characteristic ginseng value of the performance indicator of system.
5. a kind of performance indicator of S-band satellite mobile communication system assesses device characterized by comprising
Half actual parameter obtains module, for receiving satellite-signal by satellite automatic tracking antenna；It obtains and believes with the satellite
The characteristic ginseng value of number relevant characteristic parameter；
Sending module, for obtaining original signal；Communication process is carried out to the original signal, obtain and is established to simulated channel
Signal after module transmission processing；
The simulated channel establishes module, for carrying out channel fitting by the characteristic ginseng value, establishes simulated channel, and lead to
It crosses the simulated channel and transmits signal after the processing；
The receiving module, for receiving by signal after the processing after simulated channel transmission, and to the place after the transmission
Signal carries out recovery processing after reason, and be restored signal；Based on the recovery signal, to S-band satellite mobile communication system
Performance indicator is assessed.
6. device as claimed in claim 5, which is characterized in that
Half actual parameter obtains module, defends for each of being received under different communication environments by satellite automatic tracing antenna
Star signal；The characteristic ginseng value for obtaining characteristic parameter relevant to each satellite-signal, as each characteristic ginseng value；
The simulated channel establishes module, for carrying out channel fitting parallel by each characteristic ginseng value, establishes multiple imitative
True channel, and pass through signal after handling described in the multiple simulated channel parallel transmission, each of the multiple simulated channel
Simulated channel includes: characteristic ginseng value corresponding with the simulated channel；
The receiving module, for being received parallel by signal after the processing after the transmission of the multiple simulated channel, parallel to described
Signal carries out recovery processing after processing after transmission, and be restored signal；Based on the recovery signal, under different communication environments
The performance indicator of S-band satellite mobile communication system assessed.
7. such as device described in claim 5 or 6, which is characterized in that the sending module is used for:
Obtain original signal；
From presetting module pond, destinations traffic processing mode is selected, the presetting module pond includes: each communication process mode
Pond；
By the destinations traffic processing mode, communication process is carried out to the original signal, obtains and sends signal after processing.
8. device as claimed in claim 5, which is characterized in that described device further include:
Data memory module, for after the performance indicator to S-band satellite mobile communication system is assessed, described in storage
The data and characteristic ginseng value of the performance indicator of S-band satellite mobile communication system.
9. a kind of electronic equipment, which is characterized in that including processor, communication interface, memory and communication bus, wherein described
Processor, the communication interface, the memory complete mutual communication by the communication bus；
The memory, for storing computer program；
The processor when for executing the program stored on the memory, realizes any side claim 1-4
Method step.
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