Estimation Method of Uplink Received Power of Satellite TT&C Based on Temperature Step Test Data
A technology of testing data and receiving power, which is applied in transmission monitoring, electrical components, transmission systems, etc., can solve the problems of large error of results and large error of results, and achieve the effect of improved accuracy, less calculation links, and high precision
Active Publication Date: 2018-06-01
BEIJING INST OF SPACECRAFT SYST ENG
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[0004] The current situation of the field involved by the present invention: 1) The traditional theoretical calculation value of the received power of the satellite uplink measurement and control channel using the performance test value of each link of the measurement and control link includes the actual space attenuation error, the antenna gain error and a series of equipment performance test errors Due to accumulation and other factors, the error of the final result is very large, on the order of 10dB; 2) The traditional estimate of the received power of the satellite uplink measurement and control channel based on a single AGC curve does not consider the influence of the temperature of the measurement and control transponder on the performance of the single unit, including the AGC voltage value. The result error is large, in the order of 5dB
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[0039] The basic idea of the present invention is as follows: a method for estimating satellite measurement and control uplink receiving power based on temperature step test data is proposed, and the satellite uplink measurement and control channel receiving power is estimated based on the satellite measurement and control transponder on-orbit AGC voltage and internal temperature. The calculation process uses measurement and control. Temperature error correction is carried out on the test data of single temperature step test of transponder. Compared with the traditional theoretical calculation of the received power of the satellite uplink measurement and control channel that uses the performance test values of each link of the measurement and control link, this method has fewer calculation links and simple procedures, and does not introduce actual spatial attenuation errors, antenna gain errors and a series of equipment performance tests Accumulation of errors, the accuracy ...
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The invention provides a method for estimating satellite measurement and control uplink receiving power based on temperature step test data. The receiving power of a satellite measurement and control uplink channel is estimated in accordance with an on-orbit AGC voltage and an internal temperature of a satellite measurement and control responder, and a temperature error is corrected in a calculation process by employing stand-alone temperature step test data of the measurement and control responder. Compared with the theoretical calculation manner of the receiving power of the satellite measurement and control uplink channel by the performance test values in various procedures of a measurement and control link, the method is few in calculation procedures and simple in process, no actual space attenuation error, antenna gain error or a series of equipment performance test error accumulation will be introduced, and the accuracy of the estimation result is greatly improved.
Description
Technical field [0001] The invention relates to the estimation of the received power of the satellite uplink measurement and control channel, which is used for the performance analysis and evaluation of the satellite measurement and control link. Background technique [0002] The measurement and control link analysis is the analysis and calculation of the measurement and control radio frequency channel, and it is an important means for the design and performance estimation of the measurement and control subsystem. It provides system engineers with an overall understanding of the system. Through link analysis, designers can know the overall system design and performance. The link margin obtained by the analysis indicates whether the system can meet the requirements. Link analysis can reflect whether the system has hardware limitations, and whether it can make up for the limitations in other parts of the link. Link budget and analysis are the reference basis for weighing the imp...
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IPC IPC(8): H04B17/318
CPCH04B17/318
Inventor曹锦武向军翟君武白东炜徐进王万斌周会超丛飞李懿李晗
OwnerBEIJING INST OF SPACECRAFT SYST ENG