CN102147962A - Method for realizing dynamic on-track programming on telemetered satellite signal - Google Patents
Method for realizing dynamic on-track programming on telemetered satellite signal Download PDFInfo
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Abstract
The invention discloses a dynamic programmable satellite signal telemetering technology. The technology aims at better meeting the monitoring requirement of global high-capacity telemetering data of medium and low earth orbit satellites. In a satellite development test process, engineering physical parameters and working conditions of a satellite to be monitored and instruments of each subsystem are telemetered, thereby providing a data judging basis for verifying the environment of the satellite, evaluating the design performances of the satellite and each subsystem and further improving the design. In a satellite flight process, environment engineering parameters of the satellite to be monitored and the engineering parameters and working conditions of the instruments of each subsystem are telemetered, thereby providing a data judging basis for completing the on-track measurement and control task of the satellite and analyzing and handling a fault.
Description
Technical field
The present invention relates to the satellite observation and control technology, particularly a kind of by earth station remote control control, can carry out dynamic method to telesignalisation on the star in the rail programming.
Background technology
In satellite development test process, the gongwu parameter and the duty of monitor satellite and each subsystem instrument and equipment wanted in remote measurement, for the environment of verifying satellites, the design performance of evaluating satellite and each subsystem and further improvement design provide the data basis for estimation.In the satellite flight process, the environmental engineering parameter of monitor satellite and the engineering parameter and the duty of each subsystem instrument and equipment are wanted in remote measurement, provide the data basis for estimation for finishing satellite at rail TT﹠C task and fault analysis, processing.
Satellite information on the one hand by sensor or transducer with the information conversion of various physical quantitys for transmitting and can process the electric signal of processing, again by spaceborne telemetry equipment collection, obtain and be quantized into digital signal; Spaceborne on the other hand telemetry equipment gathers the digitized information acquisition of each subsystem of satellite by serial or parallel digital quantity interface, processes processing, transmission, send transmitter descending transmission by the DPSK modulation.Data processing be exactly to the raw information that receives process, conversion and calculating, reach environment, the state of understanding and grasping satellite and the purpose of controlling satellite.It is the reduction or the pre-service of information, also is the functional status of telemetry parameter and sensor, the description of physical characteristics.
The large satellite that No. three satellites of wind and cloud are multi-loads, the telemetry parameter One's name is legion has more than 5800 telemetry parameter by the byte statistics, launches if some digital telemetry amount is pressed bit according to the actual physical meaning, and total telemetry parameter amount can reach 15000 more than.Because earth tracking telemetry and command station only can cover very little a part of observing and controlling segmental arc to medium and low earth orbit satellites, need 100 minutes such as low orbit satellite around the earth one circle, but earth tracking telemetry and command station at most only can be to the 15 minute enforcements in real time monitoring of satellite in domestic flight, 85 minutes earth tracking telemetry and command stations for the flight overseas can not be monitored in real time, therefore be the overall process of satellite flight on top of, satellite needs earlier will be in telemetry collection overseas, store, wait to enter domestic after, again with delayed telemetry information and real-time telemetry information to reach earth station under certain transmission ratio combination.
Summary of the invention
Technical matters to be solved by this invention is to propose a kind of earth station remote control control of passing through, and telesignalisation on the star is carried out the method for dynamically programming at rail.The present invention mainly considers the requirement difference to some telemetry parameter in satellite different operating period, use is at the rail programming technique, transmission mode, transmission content, sample frequency, delayed telemetry recorded content to satellite telemetry dynamically change on demand with record ratio and real-time telemetry and delayed telemetry transmission ratio etc., to satisfy the monitoring requirement of different phase.
In order to solve the problems of the technologies described above, the satellite telemetry signal dynamics that the present invention proposes is at the rail programmed method, comprise remote measurement content, the telesignalisation of transmission mode to the satellite telemetry signal, transmission sample frequency, overseas the recorded content of delayed telemetry carries out dynamically in the rail change, to satisfy the monitoring requirement of different phase with the delayed telemetry transmission ratio on demand with record ratio and real-time telemetry.
The above-mentioned satellite telemetry signal dynamics of the present invention is in the rail programmed method, the transmission mode of telesignalisation is meant that in the rail programming satellite is provided with the transmission mode of two kinds of real-time telemetries---powered phase and initial state pattern and equilibrium mode, selection between two kinds of real-time telemetry patterns is switched, and finishes in the mode of rail programming by remote control; When satellite was entered the orbit, original state was powered phase and initial state pattern; After treating that the satellite satellite and the rocket separate, solar battery array launches to put in place, no longer need to continue to observe these remote measurement contents, can switch to the remote measurement steady state mode of operation in the rail programming by remote control, to improve the transfer efficiency of telemeter channel.
The above-mentioned satellite telemetry signal dynamics of the present invention is in the rail programmed method, and the remote measurement content of transmission is meant the case of emergency of considering satellite in the rail programming, and satellite injects the fast frame of new remote measurement that ground need be monitored in the rail programming on star; The content of the fast frame of remote measurement is selected telemetry parameter by ground and is made up the fast frame of new remote measurement in the mode that upstream data injects, to satisfy the needs of satellite actual operating mode.
The above-mentioned satellite telemetry signal dynamics of the present invention is in the rail programmed method, the sample frequency of telesignalisation rail programming be meant according to satellite telemetering data in rail monitoring requirement, the remote measurement of slow wave road is adopted remote measurement soon by changing in the rail programming, improve its sample frequency, obtain the more detailed situation of change of telemetry parameter.
The above-mentioned satellite telemetry signal dynamics of the present invention is in the rail programmed method, overseas the recorded content of delayed telemetry and record ratio are meant that in rail programming the delayed telemetry recorded content of satellite overseas and record ratio control by ground control station, monitoring emphasis according to satellite, some telemetry of satellite is carried out intensive record, can with limited telemeter channel focus utilization in the system or unit that need the emphasis monitoring, the dirigibility of delayed telemetry content and the transfer efficiency of telemeter channel have been improved like this.
The above-mentioned satellite telemetry signal dynamics of the present invention is in the rail programmed method, when real-time telemetry and delayed telemetry transmission ratio are meant satellite in domestic playback in the rail programming, according to the real-time requirement in ground, change the playback ratio of delayed telemetry, such as, in the face of carrying out some operation on the star, need to pay close attention to the variation of real-time telemetry on ground, the playback ratio of delayed telemetry can be turned down even not playback temporarily as far as possible, to guarantee the handling safety of ground action.
The present invention utilizes at the rail program means, under the prerequisite that need not change the satellite hardware connection, can dynamically adjust with record ratio and real-time telemetry and delayed telemetry transmission ratio etc. transmission mode, transmission content, sample frequency, the delayed telemetry recorded content of satellite telemetry parameters, both saved the hardware resource of satellite, safe and reliable again, also dropped to minimum to the operational risk of satellite.The dynamically programmable function of telesignalisation has realized the most effective telemetry parameter of transmission in limited channel capacity, has improved transfer efficiency, has satisfied satellite in the different demands of different phase to telemetry monitoring.The dynamically programmable technology is one of core technology in No. three satellite TT﹠C system telemetry implement plans of wind and cloud, and the enforcement of this technology becomes No. three satellite telemetry schemes of wind and cloud can to adjust in the present domestic satellite in orbit that content is the abundantest, dirigibility is the strongest, economize on hardware resource, optimized scheme.
Description of drawings
Fig. 1 is telemetry mode implementation method figure of the present invention.
Fig. 2 is that gyro three axis angular rates of former 2s sampling of the present invention change 0.5s frequency acquisition figure into.
Fig. 3 is satellite rate of pitch of the present invention remote measurement curve map before and after the rail programming.
Fig. 4 is the frequency acquisition figure that the TRMMMi-crowave Imager scan period of 16s renewal of the present invention changes 1s into.
Fig. 5 is remote measurement correlation curve figure before and after the TRMMMi-crowave Imager scan period programming of the present invention.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment the present invention is described in further detail.
(1) transmission mode
One of remote measurement programmable content is the transmission mode of telesignalisation.
According to the different phase of satellite transit, the operational mode of real-time telemetry is divided into two classes, i.e. powered phase and initial state pattern, equilibrium mode, wherein:
Powered phase and initial state pattern: the concentrated area has been chosen satellite and has been adopted soon and transmit at the telemetry parameter of powered phase and initial state work unit, mainly contains the power-supply system parameter, pipe parameter, rail control components of system as directed parameter etc. are counted in observing and controlling.
Equilibrium mode: this is the telemetry mode of satellite in rail stable operation, also be the main pattern of satellite telemetry work, in a telemetry format the cycle, to all engineering telemetry parameters of satellite, comprise bus remote measurement, four-wire system remote measurement and analog quantity remote measurement etc., at least transmission primaries.To the important parameter of satellite, as attitude angle, the attitude angle speed of rail control system, the power-supply system key parameter, observing and controlling is counted pipe parameter etc. and is sampled with frame rate 0.5s and transmit.
Each operational mode of real-time telemetry, all be that the concentrated area has been chosen and can be reacted the main telemetry parameter that satellite should the stage operation conditions, it is gathered fast and transmits, and to the telemetry parameter of other class, just in the cycle it is adopted slowly and transmit at a form.
As shown in Figure 1, the selection between two kinds of real-time telemetry patterns is switched, and finishes in the mode of rail programming by remote control.When satellite was entered the orbit, original state was powered phase and initial state pattern.After treating that the satellite satellite and the rocket separate, solar battery array launches to put in place, no longer need to continue to observe these remote measurement contents, can switch to the remote measurement steady state mode of operation in the rail programming by remote control, so that improve the transfer efficiency of telemeter channel.
(2) transmission content
Two remote measurement content---telemetry parameters of remote measurement programmable content for transmission.
Consider the case of emergency of satellite, satellite can inject the fast frame of new remote measurement that ground need be monitored in the rail programming on star.The content of the fast frame of remote measurement is selected telemetry parameter by ground and is made up the fast frame of new remote measurement in the mode that upstream data injects, to satisfy the needs of satellite actual operating mode.Table 1 is the formatting of real-time telemetry frame, wherein W14～the W93 of every frame all places the crucial telemetry parameter of whole star, the fast frame of new remote measurement that the mode of injecting with upstream data makes up, the number modification is annotated in the remote control of no longer making that occupies the W14 in the telemeter frame～W93 position, still is used to transmit the important fixedly remote measurement of whole star totally 80 bytes.Like this, the fast frame of remote measurement can be used for remote control and annotate telemetry parameter that number makes amendment totally 160 bytes, occupy the position of the W94 in the telemeter frame～W253, carry out remote control and annotate the fast frame of the amended remote measurement of number, the telemeter " frame identifier word " of selecting a new 12bit simultaneously for use is as the sign of the new fast frame of remote measurement that makes up, realize remote measurement transmission content in the programmable ability of rail.
Table 1. real-time telemetry frame transmission content
, can pass through to inject data at any time in the rail programming on star and generate the new fast frame of remote measurement at the rail needs according to satellite, the demand that can satisfy ground experiment so at any time and monitor at rail has improved the dirigibility that remote measurement is transmitted greatly.
(3) sample frequency
Three of remote measurement programmable content is the sample frequency of telesignalisation.
No. three satellite telemetry parameters of wind and cloud have four kinds of sampling period: 0.5s, 1s, 2s, 16s, because telemetry parameter is numerous, what all parameters can not all take 0.5s adopts radio frequency channel soon, and the telemetry parameter that some changes more in time or attention rate is not high has at ordinary times just used that 16s's adopt radio frequency channel slowly.But when satellite breaks down, need to be grasped the detailed situation of change of some parameter, some slow telemetry channels just can not satisfy the monitoring requirement like this, need by change the sample frequency of telemetry parameter in the rail programming.
In May, 2008, during carrying out No. three satellites transmits tasks of wind and cloud, the tester finds that the load TRMMMi-crowave Imager scanning beginning back satellite angular velocity of satellite lift-launch is unusual, and the satellite gyro has monitored unusual additional angular velocity.For this problem being analyzed and being located, need satellite driftage, pitching, roll attitude angular velocity are carried out data analysis and processing.And pitching, rolling, yaw rate that satellite 0.5s adopts in the telemetry frame soon are to be obtained through difference by infrared horizon or star sensor data, can not reflect the real satellite attitude angular velocity.The satellite three-axis attitude angular velocity that gyro records can truly reflect the attitude of satellite, adopts frame soon but relevant remote measurement belongs to 2s, and this sample frequency can't satisfy ground data analysis demand.
For this reason, on September 8th, 2008 the measuring satellite angular velocities telemetry channel of gyro is inserted 0.5s adopt soon in the frame in rail programming by remote measurement is carried out, satisfied the demand that ground data is analyzed, as shown in Figure 2.
Fig. 2 changes the 0.5s frequency acquisition into for gyro three axis angular rates of former 2s sampling, gyro three axis angular rates that red data upgrades for the preceding 2s of programming, and blue data is programming back 0.5s renewal three-axis attitude angular velocity once.Fig. 3 is the remote measurement correlation curve of satellite rate of pitch before and after the rail programming, after the rail programming, can be observed the attitude angular velocity that gyro records, and has truly reflected the three-axis attitude situation of change of satellite.By in the rail programming, can grasp the accurate more attitude variation tendency of satellite, bring very big benefit for analyzing, solve the influence of TRMMMi-crowave Imager scanning to attitude.
Equally, to TRMMMi-crowave Imager in the solution of rail problem, the scan period parameter of finding TRMMMi-crowave Imager is that 16s upgrades slow remote measurement once, do not satisfy the monitoring requirement, therefore need to adopt radio frequency channel TMC036-TMC037 soon, thereby change the frequency acquisition of 1s into by TRMMMi-crowave Imager scan period parameter (TMP486-TMP487) being used TT﹠C system in the rail programming.
Can find out by Figure 4 and 5, after TRMMMi-crowave Imager scan period parameter changes the 1s frequency acquisition into, remote measurement correlation curve under two kinds of different acquisition frequencies of 16s and 1s, the curve of 1s renewal frequency more can reflect the actual change situation, has proved correctness and necessity in the rail programming.
In the processing of this incident, fully shown the telemetry parameter sample frequency may be programmed in satellite in rail is safeguarded flexibly with convenient, help quick location, demonstrated fully No. three programmable superiority of satellite telemetry parameters sample frequency of wind and cloud in the rail problem.
(4) delayed telemetry recorded content and record ratio
Four of remote measurement programmable content is the recorded content and record ratio of delayed telemetry overseas.
The delayed telemetry recorded content of satellite overseas and record ratio are controlled by ground control station, monitoring emphasis according to satellite, some telemetry of satellite is carried out intensive record, can with limited telemeter channel focus utilization in the system or unit that need the emphasis monitoring, the dirigibility of delayed telemetry content and the transfer efficiency of telemeter channel have been improved like this.
(5) real-time telemetry and delayed telemetry transmission ratio
Five of remote measurement programmable content is real-time telemetry and delayed telemetry transmission ratio.
Satellite can change the playback ratio of delayed telemetry according to the real-time requirement in ground when domestic playback.Such as, in the face of carrying out some operation on the star, needing to pay close attention to the variation of real-time telemetry on ground, the playback ratio of delayed telemetry can be turned down even not playback temporarily as far as possible, to guarantee the handling safety of ground action.The transmission ratio of real-time telemetry and delayed telemetry is changed in the rail programming Control neatly by ground, to satisfy the satellite monitoring demand of different periods.
Obviously, those skilled in the art can carry out various changes and modification to technical scheme of the present invention and not break away from design philosophy of the present invention and technical scope, if like this, of the present invention these are changed and modification belongs within claim of the present invention and the corresponding techniques scope, and then the intent of the present invention also comprises these changes and modification interior.
Claims (6)
1. a satellite telemetry signal dynamics is at the rail programmed method, it is characterized in that: this method comprises the sample frequency of remote measurement content to the transmission mode of satellite telemetry signal, transmission, telesignalisation, overseas the recorded content of delayed telemetry carries out dynamically in the rail change, to satisfy the monitoring requirement of different phase with the delayed telemetry transmission ratio on demand with record ratio and real-time telemetry.
2. satellite telemetry signal dynamics according to claim 1 is at the rail programmed method, it is characterized in that: the transmission mode of telesignalisation is meant that in the rail programming satellite is provided with the transmission mode of two kinds of real-time telemetries---powered phase and initial state pattern and equilibrium mode, selection between two kinds of real-time telemetry patterns is switched, and finishes in the mode of rail programming by remote control; When satellite was entered the orbit, original state was powered phase and initial state pattern; After treating that the satellite satellite and the rocket separate, solar battery array launches to put in place, no longer need to continue to observe these remote measurement contents, can switch to the remote measurement steady state mode of operation in the rail programming by remote control, to improve the transfer efficiency of telemeter channel.
3. satellite telemetry signal dynamics according to claim 2 is characterized in that at the rail programmed method: the remote measurement content of transmission is meant the case of emergency of considering satellite in the rail programming, and satellite injects the fast frame of new remote measurement that ground need be monitored in the rail programming on star; The content of the fast frame of remote measurement is selected telemetry parameter by ground and is made up the fast frame of new remote measurement in the mode that upstream data injects, to satisfy the needs of satellite actual operating mode.
4. satellite telemetry signal dynamics according to claim 3 is at the rail programmed method, it is characterized in that: the sample frequency of telesignalisation rail programming be meant according to satellite telemetering data in rail monitoring requirement, the remote measurement of slow wave road is adopted remote measurement soon by changing in the rail programming, improve its sample frequency, obtain the more detailed situation of change of telemetry parameter.
5. satellite telemetry signal dynamics according to claim 4 is at the rail programmed method, it is characterized in that: overseas the recorded content of delayed telemetry and record ratio are meant that in rail programming the delayed telemetry recorded content of satellite overseas and record ratio control by ground control station, monitoring emphasis according to satellite, some telemetry of satellite is carried out intensive record, can with limited telemeter channel focus utilization in the system or unit that need the emphasis monitoring, the dirigibility of delayed telemetry content and the transfer efficiency of telemeter channel have been improved like this.
6. satellite telemetry signal dynamics according to claim 5 is at the rail programmed method, it is characterized in that: when real-time telemetry and delayed telemetry transmission ratio are meant satellite in domestic playback in the rail programming, according to the real-time requirement in ground, change the playback ratio of delayed telemetry, such as, in the face of carrying out some operation on the star, need to pay close attention to the variation of real-time telemetry on ground, the playback ratio of delayed telemetry can be turned down even not playback temporarily as far as possible, to guarantee the handling safety of ground action.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102681529A (en) * | 2012-04-23 | 2012-09-19 | 北京空间飞行器总体设计部 | Spacecraft autonomous delay telemetering method adapted to parameter characteristics |
| CN103034236A (en) * | 2012-11-30 | 2013-04-10 | 北京控制工程研究所 | Multiple star sensor timing sequence synchronization processing method based on time division multiplexing |
| CN105242534A (en) * | 2015-09-11 | 2016-01-13 | 中国人民解放军国防科学技术大学 | Telemetry parameter and correlation with satellite control behavior-based satellite condition monitoring method |
| CN106330290A (en) * | 2016-08-12 | 2017-01-11 | 上海卫星工程研究所 | Low-orbit satellite measurement and control telemetering work time sequence optimization method |
| CN106406863A (en) * | 2016-08-31 | 2017-02-15 | 西安空间无线电技术研究所 | Security reconfiguration method of in-orbit data for manned aircraft instrument software |
| CN106470091A (en) * | 2016-09-08 | 2017-03-01 | 上海卫星工程研究所 | The method of telemetering under deep-space spacecraft low bit- rate |
| CN106772366A (en) * | 2016-11-21 | 2017-05-31 | 上海卫星工程研究所 | Real-time autonomous control method on the star of satellite microwave imaging |
| CN107220097A (en) * | 2017-05-25 | 2017-09-29 | 上海航天控制技术研究所 | A kind of in-orbit programming of large-scale complex infrastructure software and overloaded method |
| CN110380770A (en) * | 2019-06-10 | 2019-10-25 | 浙江大学 | A kind of low rail mobile satellite communication network it is adaptive to star method |
| CN110391840A (en) * | 2019-09-17 | 2019-10-29 | 中国人民解放军国防科技大学 | Method and system for judging abnormality of telemetry parameters of sun synchronous orbit satellite |
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| CN102681529B (en) * | 2012-04-23 | 2014-07-02 | 北京空间飞行器总体设计部 | Spacecraft autonomous delay telemetering method adapted to parameter characteristics |
| CN102681529A (en) * | 2012-04-23 | 2012-09-19 | 北京空间飞行器总体设计部 | Spacecraft autonomous delay telemetering method adapted to parameter characteristics |
| CN103034236A (en) * | 2012-11-30 | 2013-04-10 | 北京控制工程研究所 | Multiple star sensor timing sequence synchronization processing method based on time division multiplexing |
| CN103034236B (en) * | 2012-11-30 | 2015-07-08 | 北京控制工程研究所 | Multiple star sensor timing sequence synchronization processing method based on time division multiplexing |
| CN105242534A (en) * | 2015-09-11 | 2016-01-13 | 中国人民解放军国防科学技术大学 | Telemetry parameter and correlation with satellite control behavior-based satellite condition monitoring method |
| CN106330290A (en) * | 2016-08-12 | 2017-01-11 | 上海卫星工程研究所 | Low-orbit satellite measurement and control telemetering work time sequence optimization method |
| CN106406863B (en) * | 2016-08-31 | 2019-07-12 | 西安空间无线电技术研究所 | A kind of in-orbit data safety method for reconfiguration for the instruments and meters software that carries people to fly |
| CN106406863A (en) * | 2016-08-31 | 2017-02-15 | 西安空间无线电技术研究所 | Security reconfiguration method of in-orbit data for manned aircraft instrument software |
| CN106470091A (en) * | 2016-09-08 | 2017-03-01 | 上海卫星工程研究所 | The method of telemetering under deep-space spacecraft low bit- rate |
| CN106772366A (en) * | 2016-11-21 | 2017-05-31 | 上海卫星工程研究所 | Real-time autonomous control method on the star of satellite microwave imaging |
| CN106772366B (en) * | 2016-11-21 | 2019-06-07 | 上海卫星工程研究所 | Real-time autonomous control method on the star of satellite microwave imaging |
| CN107220097A (en) * | 2017-05-25 | 2017-09-29 | 上海航天控制技术研究所 | A kind of in-orbit programming of large-scale complex infrastructure software and overloaded method |
| CN107220097B (en) * | 2017-05-25 | 2020-09-25 | 上海航天控制技术研究所 | On-orbit programming and overloading method for large-scale complex structure software |
| CN110380770A (en) * | 2019-06-10 | 2019-10-25 | 浙江大学 | A kind of low rail mobile satellite communication network it is adaptive to star method |
| US11764864B2 (en) | 2019-06-10 | 2023-09-19 | Zhejiang University | Adaptive satellite-aiming method for low-orbit mobile satellite communication network |
| CN110391840A (en) * | 2019-09-17 | 2019-10-29 | 中国人民解放军国防科技大学 | Method and system for judging abnormality of telemetry parameters of sun synchronous orbit satellite |
| CN110391840B (en) * | 2019-09-17 | 2019-12-17 | 中国人民解放军国防科技大学 | Method and system for judging abnormality of telemetry parameters of sun synchronous orbit satellite |
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Application publication date: 20110810 |