CN103278822A - HLA (High level architecture) platform-based performance evaluation system and method for satellite navigation and positioning system - Google Patents
HLA (High level architecture) platform-based performance evaluation system and method for satellite navigation and positioning system Download PDFInfo
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Abstract
The invention discloses a HLA (high level architecture) platform-based performance evaluation system and method for a satellite navigation and positioning system. The HLA platform-based performance evaluation system for the satellite navigation and positioning system comprises an HLA simulation control platform and six federation members connected with the HLA simulation control platform, wherein the six federation members refer to a scene setting module, a time service subsystem simulation module, an orbit determination subsystem simulation module, a signal generation subsystem simulation module, a signal receiving process and analysis simulation module and a simulation evaluation module. According to the HLA platform-based performance evaluation system and method for the satellite navigation and positioning system disclosed by the invention, the simulation and the evaluation of the whole system are finished by adopting an HLA simulation control platform. In an integrated environment of integrating constructive simulation, virtual simulation and real situation simulation, interoperability, dynamic management, one point to multipoint communication and system and component reuse among various simulation systems are realized, and object models at different levels are established. According to the HLA platform-based performance evaluation system and method for the satellite navigation and positioning system disclosed by the invention, not only can measures be provided for verification and evaluation in satellite navigation system engineering construction and the system construction risk be lowered but also a reliable, stable, accurate and easy-to-use simulation and testing software environment can be provided for satellite navigation users.
Description
Technical field
The present invention relates to the satellite navigation field, be specifically related to a kind of based on HLA(High Level Architecture, high-order analogue framework) satellite navigation and location system performance estimating method and the system of platform.
Background technology
At present, the world has built up two big GPS (Global Position System), and namely secondly GPS of USA and Muscovite GLONASS, also have two satellite navigation systems of stepping up to build, i.e. the BD of the GALILEO of European Union and China.Wherein, GPS and GLONASS are relatively ripe satellite navigation systems, but GALILEO and BD are as new satellite navigation system, its signal system (comprising: frequency, signal bandwidth, signal modulation system, bit rate, information rate, message format etc.), constellation design, land station's design, receiver design all are brand-new, and in process of construction, may there be adjustment, all need be through prior emulation and assessment checking in all these design processes, particularly the protocol layer format design is necessary through reasonable, sufficient emulation and checking.
The emulation of satellite navigation system and assessment are huge engineerings, relate to a plurality of links such as land station, satellite constellation, signal system and signal reception, solving simulation system to have characteristics such as repeatability, interoperability, resource sharing.For satellite navigation system, performance estimating method can provide means for checking and assessment in the satellite navigation system engineering construction, reduces system's risks of construction.For being the satellite navigation user, this method provides reliable, stable, an accurate and easy-to-use emulation and testing software environment, the user is followed one's bent according to oneself requiring to select suitable GNSS(Global Navigation Satellite System, GLONASS (Global Navigation Satellite System)).
Summary of the invention
Technical matters to be solved by this invention provides a kind of satellite navigation and location system performance evaluation system and method based on the HLA platform, it can provide means for checking and assessment in the satellite navigation system engineering construction, reduction system risks of construction can provide reliable, stable, an accurate and easy-to-use emulation and testing software environment for the satellite navigation user again.
For addressing the above problem, the present invention is achieved by the following scheme:
Based on the satellite navigation and location system performance evaluation system of HLA platform, mainly by HLA Simulation Control Platform, the scene setting module that links to each other with the HLA Simulation Control Platform, time service subsystem emulation module, measure rail subsystem emulation module, signal and generate subsystem emulation module, signal and receive and handle and analyze emulation module, reach these 6 federal members of emulation evaluation module and form; Wherein
The HLA Simulation Control Platform is finished the distribution with data assigned of steering order, finishes generation data mutual of each federal member simultaneously;
The scene setting module is finished the scene setting of 6 federal members and the initial parameter setting of evaluating system, and the parameter of above-mentioned setting is distributed to each federal member by the HLA Simulation Control Platform;
The emulation of time service subsystem emulation module is the satellite navigation time system, for providing, evaluating system comprises simulation time and simulation step length equal time information, it is the time reference of whole evaluating system, and pass through the HLA Simulation Control Platform to measuring rail subsystem emulation module, signal generation subsystem emulation module, signal reception processing and analysis emulation module and these 4 subsequent module of emulation evaluation module, above-mentioned 4 subsequent module are finished artificial tasks successively under the driving of this simulation time;
Measure simulation time and simulation step length that rail subsystem emulation module receives the distribution of HLA Simulation Control Platform, survey rail and the orbit determination method of emulation assessment satellite navigation system, and the generation satellite navigation information, and be distributed to signal by the HLA Simulation Control Platform and generate the subsystem emulation module;
Signal generates the subsystem emulation module receives the satellite orbit of measuring rail subsystem emulation module by the HLA Simulation Control Platform simulation parameter, generate the emulation navigation signal of certain signal system under the control of simulation time and simulation step length as requested, this emulation navigation signal is distributed to signal by the HLA Simulation Control Platform and receives processing and analyze emulation module;
Signal receive to be handled and is analyzed emulation module and receives the digital intermediate frequency signal that HLA places the actual navigation signal of the digital intermediate frequency signal of emulation navigation signal of control platform distribution and actual acquisition, and respectively these 2 digital intermediate frequency signals are carried out corresponding emulation assessment, at last assessment result is distributed to the emulation evaluation module by the HLA Simulation Control Platform;
The emulation evaluation module shows the assessment result that the signal reception is handled and the analysis emulation module is sent here.
The satellite navigation and location system performance estimating method based on the HLA platform according to above-mentioned evaluating system is realized comprises the steps:
1. the scene setting module is finished the scene setting of 6 federal members and the initial parameter setting of evaluating system, and the parameter of above-mentioned setting is distributed to each federal member by the HLA Simulation Control Platform;
2. the emulation of time service subsystem emulation module is the satellite navigation time system, for providing, evaluating system comprises simulation time and simulation step length equal time information, it is the time reference of whole evaluating system, and pass through the HLA Simulation Control Platform to measuring rail subsystem emulation module, signal generation subsystem emulation module, signal reception processing and analysis emulation module and these 4 subsequent module of emulation evaluation module, above-mentioned 4 subsequent module are finished artificial tasks successively under the driving of this simulation time;
3. measure simulation time and simulation step length that rail subsystem emulation module receives the distribution of HLA Simulation Control Platform, survey rail and the orbit determination method of emulation assessment satellite navigation system, and the generation satellite navigation information, and be distributed to signal by the HLA Simulation Control Platform and generate the subsystem emulation module;
4. signal generates the subsystem emulation module receives the satellite orbit of measuring rail subsystem emulation module by the HLA Simulation Control Platform simulation parameter, generate the emulation navigation signal of certain signal system under the control of simulation time and simulation step length as requested, this emulation navigation signal is distributed to signal by the HLA Simulation Control Platform and receives processing and analyze emulation module;
5. signal receive to be handled and is analyzed emulation module and receives the digital intermediate frequency signal that HLA places the actual navigation signal of the digital intermediate frequency signal of emulation navigation signal of control platform distribution and actual acquisition, and respectively these 2 digital intermediate frequency signals are carried out corresponding emulation assessment, at last assessment result is distributed to the emulation evaluation module by the HLA Simulation Control Platform;
6. the emulation evaluation module shows the assessment result that the signal reception is handled and the analysis emulation module is sent here.
In the said method, the HLA Simulation Control Platform is finished the distribution with data assigned of steering order, and above steps generates data and also finishes the mutual of data by the HLA Simulation Control Platform simultaneously;
In the said method, step 6. middle assessment result shows by figure, interface and/or digital form.
Compared with prior art, the present invention adopts the HLA Simulation Control Platform to finish emulation and the assessment of total system, the integrated environment that constructive simulation, virtual emulation and live emulation are integrated, realize the reusing of interoperability, dynamic management, point-to-multipoint communication, system and parts between all kinds of analogue systems, and the object model of setting up different levels.For satellite navigation system, the present invention can provide means for checking and assessment in the satellite navigation system engineering construction, reduces system's risks of construction.For the satellite navigation user, the invention provides reliable, stable, an accurate and easy-to-use emulation and testing software environment, the user is followed one's bent according to oneself requiring to select suitable GLONASS (Global Navigation Satellite System).
Description of drawings
Fig. 1 is the composition frame chart based on the satellite navigation and location system performance evaluation system of HLA platform;
Fig. 2 is the schematic diagram based on the satellite navigation and location system performance estimating method of HLA platform.
Embodiment
A kind of satellite navigation and location system performance evaluation system based on the HLA platform, as shown in Figure 1, its mainly by HLA Simulation Control Platform, the scene setting module that links to each other with the HLA Simulation Control Platform, time service subsystem emulation module, measure rail subsystem emulation module, signal generate subsystem emulation module, signal receive handle and analyze emulation module, and these 6 federal members of emulation evaluation module form.Wherein:
(1) HLA Simulation Control Platform
The HLA Simulation Control Platform is finished the distribution with data assigned of steering order, and the generation data of each simulation subsystem are also finished the mutual of data by the HLA platform simultaneously.
(2) scene setting module
The scene setting module is finished scene setting and the initial parameter setting of artificial tasks.As select institute's simulation subsystem, the parameter configuration of subsystem, the isoparametric setting of user's original state.
(3) time service subsystem emulation module
Time service subsystem emulation module is mainly finished and is satellite navigation system time service performance simulation, mainly comprises performance simulation and assessments such as full time monitoring, global two-way timing tracking accuracy, GNSS time difference monitoring and broadcasting, the dispensing of remote high-precision temporal frequency.This emulation module provides simulation time and simulation step length for whole simulation system, and is distributed to other 4 modules by the HLA Simulation Control Platform, and 4 follow-up emulation modules are finished artificial tasks successively under the driving of this simulation time.
(4) measure rail subsystem emulation module
Measure survey rail and the emulation of orbit determination subsystem of the main emulation GNSS of rail subsystem emulation module.And the actual survey rail that obtains and orbit determination data and emulated data are compared, thereby the performance of rail and orbit determination is surveyed in evaluation.And these parameters such as emulation module generation ephemeris parameter, ionosphere parameter and atomic clock, these parameters generate the subsystem emulation module by HLA platform distribute signals.
(5) signal generates the subsystem emulation module
Satellite-signal generates the main emulation satellite-signal of subsystem emulation module generative process, comprises the isoparametric information coding of satellite orbit, the generation of sign indicating number/carrier wave, signal modulation, undesired signal loading, multi-path signal loading of HLA distribution etc.This emulation module produces digital intermediate frequency signal and is distributed to signal reception processing and analyzes emulation module by the HLA Simulation Control Platform.
(6) signal receives and handles and analyze emulation module
Signal receives to be handled and analyzes the main emulation of emulation module and analyze GNSS signal performance and navigator fix result, comprise the pre-service of signal, the emulation GNSS digital intermediate frequency signal of HLA Simulation Control Platform distribution and the actual GNSS digital intermediate frequency signal of actual acquisition are carried out certain pre-service; By being caught, emulation and actual signal finish signal correlation, cross correlation, sensitivity and compatibility analysis; Follow the tracks of anti-interference, anti-multipath and the sensitivity analysis of finishing the GNSS signal by emulation and actual signal; By to emulation and the demodulation of actual signal GNSS text, finish the analysis of signal power and the bit error rate; By to emulation and actual signal pseudorange extraction, analysis code and carrier wave distance accuracy; By with emulation and actual signal positioning calculation, finish the PVT precision analysis of GNSS.The emulation of this emulation module and analysis result are distributed to the emulation evaluation module by the HLA Simulation Control Platform.
(7) emulation evaluation module
Emulation assessment result display module mainly receives signal and receives the simulation analysis assessment of done subsystem as a result of handling and analyzing emulation module, and the form of assessment result by figure, interface or numeral shown.
A kind of satellite navigation and location system performance estimating method based on HLA platform designed according to said system, as shown in Figure 2, it comprises the steps:
1. the scene setting module is finished the scene setting of 6 federal members and the initial parameter setting of evaluating system, and the parameter of above-mentioned setting is distributed to each federal member by the HLA Simulation Control Platform.
2. the emulation of time service subsystem emulation module is the satellite navigation time system, for providing, evaluating system comprises simulation time and simulation step length equal time information, it is the time reference of whole evaluating system, and pass through the HLA Simulation Control Platform to measuring rail subsystem emulation module, signal generation subsystem emulation module, signal reception processing and analysis emulation module and these 4 subsequent module of emulation evaluation module, above-mentioned 4 subsequent module are finished artificial tasks successively under the driving of this simulation time.
3. measure simulation time and simulation step length that rail subsystem emulation module receives the distribution of HLA Simulation Control Platform, survey rail and the orbit determination method of emulation assessment satellite navigation system, and the generation satellite navigation information, and be distributed to signal by the HLA Simulation Control Platform and generate the subsystem emulation module.
4. signal generates the subsystem emulation module receives the satellite orbit of measuring rail subsystem emulation module by the HLA Simulation Control Platform simulation parameter, generate the emulation navigation signal of certain signal system under the control of simulation time and simulation step length as requested, this emulation navigation signal is distributed to signal by the HLA Simulation Control Platform and receives processing and analyze emulation module.
5. signal receive to be handled and is analyzed emulation module and receives the digital intermediate frequency signal that HLA places the actual navigation signal of the digital intermediate frequency signal of emulation navigation signal of control platform distribution and actual acquisition, and respectively these 2 digital intermediate frequency signals are carried out corresponding emulation assessment, at last assessment result is distributed to the emulation evaluation module by the HLA Simulation Control Platform.
6. the emulation evaluation module receives signal and handles and analyze assessment result the showing by figure, interface and/or numeral that emulation module is sent here.
The HLA Simulation Control Platform is finished the distribution with data assigned of steering order, and above steps generates data and also finishes the mutual of data by the HLA Simulation Control Platform simultaneously.
Claims (4)
1. based on the satellite navigation and location system performance evaluation system of HLA platform, it is characterized in that: mainly by HLA Simulation Control Platform, the scene setting module that links to each other with the HLA Simulation Control Platform, time service subsystem emulation module, measure rail subsystem emulation module, signal and generate subsystem emulation module, signal and receive and handle and analyze emulation module, reach these 6 federal members of emulation evaluation module and form.Wherein
The HLA Simulation Control Platform is finished the distribution with data assigned of steering order, finishes generation data mutual of each federal member simultaneously.
The scene setting module is finished the scene setting of 6 federal members and the initial parameter setting of evaluating system, and the parameter of above-mentioned setting is distributed to each federal member by the HLA Simulation Control Platform.
The emulation of time service subsystem emulation module is the satellite navigation time system, for providing, evaluating system comprises simulation time and simulation step length equal time information, it is the time reference of whole evaluating system, and pass through the HLA Simulation Control Platform to measuring rail subsystem emulation module, signal generation subsystem emulation module, signal reception processing and analysis emulation module and these 4 subsequent module of emulation evaluation module, above-mentioned 4 subsequent module are finished artificial tasks successively under the driving of this simulation time.
Measure simulation time and simulation step length that rail subsystem emulation module receives the distribution of HLA Simulation Control Platform, survey rail and the orbit determination method of emulation assessment satellite navigation system, and the generation satellite navigation information, and be distributed to signal by the HLA Simulation Control Platform and generate the subsystem emulation module.
Signal generates the subsystem emulation module receives the satellite orbit of measuring rail subsystem emulation module by the HLA Simulation Control Platform simulation parameter, generate the emulation navigation signal of certain signal system under the control of simulation time and simulation step length as requested, this emulation navigation signal is distributed to signal by the HLA Simulation Control Platform and receives processing and analyze emulation module.
Signal receive to be handled and is analyzed emulation module and receives the digital intermediate frequency signal that HLA places the actual navigation signal of the digital intermediate frequency signal of emulation navigation signal of control platform distribution and actual acquisition, and respectively these 2 digital intermediate frequency signals are carried out corresponding emulation assessment, at last assessment result is distributed to the emulation evaluation module by the HLA Simulation Control Platform.
The emulation evaluation module shows the assessment result that the signal reception is handled and the analysis emulation module is sent here.
2. according to the appraisal procedure of the described satellite navigation and location system performance evaluation system based on the HLA platform of claim 1, it is characterized in that, comprise the steps:
1. the scene setting module is finished the scene setting of 6 federal members and the initial parameter setting of evaluating system, and the parameter of above-mentioned setting is distributed to each federal member by the HLA Simulation Control Platform.
2. the emulation of time service subsystem emulation module is the satellite navigation time system, for providing, evaluating system comprises simulation time and simulation step length equal time information, it is the time reference of whole evaluating system, and pass through the HLA Simulation Control Platform to measuring rail subsystem emulation module, signal generation subsystem emulation module, signal reception processing and analysis emulation module and these 4 subsequent module of emulation evaluation module, above-mentioned 4 subsequent module are finished artificial tasks successively under the driving of this simulation time.
3. measure simulation time and simulation step length that rail subsystem emulation module receives the distribution of HLA Simulation Control Platform, survey rail and the orbit determination method of emulation assessment satellite navigation system, and the generation satellite navigation information, and be distributed to signal by the HLA Simulation Control Platform and generate the subsystem emulation module.
4. signal generates the subsystem emulation module receives the satellite orbit of measuring rail subsystem emulation module by the HLA Simulation Control Platform simulation parameter, generate the emulation navigation signal of certain signal system under the control of simulation time and simulation step length as requested, this emulation navigation signal is distributed to signal by the HLA Simulation Control Platform and receives processing and analyze emulation module.
5. signal receive to be handled and is analyzed emulation module and receives the digital intermediate frequency signal that HLA places the actual navigation signal of the digital intermediate frequency signal of emulation navigation signal of control platform distribution and actual acquisition, and respectively these 2 digital intermediate frequency signals are carried out corresponding emulation assessment, at last assessment result is distributed to the emulation evaluation module by the HLA Simulation Control Platform.
6. the emulation evaluation module shows the assessment result that the signal reception is handled and the analysis emulation module is sent here.
3. according to the described satellite navigation and location system performance estimating method based on the HLA platform of claim 2, it is characterized in that: the HLA Simulation Control Platform is finished the distribution with data assigned of steering order, and above steps generates data and also finishes the mutual of data by the HLA Simulation Control Platform simultaneously.
4. according to the described satellite navigation and location system performance estimating method based on the HLA platform of claim 2, it is characterized in that: step 6. middle assessment result shows by figure, interface and/or digital form.
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| CN109581415A (en) * | 2019-01-25 | 2019-04-05 | 中国人民解放军海军航空大学 | A kind of synchronous apparatus and method calculated and time service controls based on GNSS |
| CN109581415B (en) * | 2019-01-25 | 2024-01-23 | 中国人民解放军海军航空大学 | GNSS-based synchronous calculation and time service control device and method |
| CN111209219A (en) * | 2020-04-21 | 2020-05-29 | 中国人民解放军国防科技大学 | Satellite navigation simulation model consistency verification method and system |
| CN113452430A (en) * | 2021-06-16 | 2021-09-28 | 中国电子科技集团公司第五十四研究所 | Ground agent system for testing navigation satellite and navigation satellite testing method |
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