Method for estimating satellite measurement and control uplink receiving power based on temperature step test data
A technology for testing data and receiving power, applied in transmission monitoring, electrical components, transmission systems, etc., can solve problems such as large result error and large result error, and achieve the effects of improved accuracy, fewer calculation steps, and simple process
Active Publication Date: 2016-11-09
BEIJING INST OF SPACECRAFT SYST ENG
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Problems solved by technology
[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 ideas of the present invention are as follows: a method for estimating the uplink receiving power of satellite measurement and control based on temperature step test data is proposed, and the receiving power of the uplink measurement and control channel of the satellite is estimated according to the on-orbit AGC voltage and internal temperature of the satellite measurement and control transponder, and the calculation process adopts measurement and control The test data of the transponder stand-alone temperature step test is corrected for temperature errors. Compared with the traditional theoretical calculation of the received power of the satellite uplink measurement and control channel using the performance test values of each link of the measurement and control link, this method has fewer calculation links and a simple process, and will not introduce actual space attenuation errors, antenna gain errors and a series of equipment performance tests Accumulatio...
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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 estimation of received power of satellite uplink measurement and control channel, which is used for performance analysis and evaluation of 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 a holistic view of the system. Through link analysis, designers can know the whole system design and performance. The analyzed link margin shows whether the system can meet the requirements. Link analysis can reveal whether there is a hardware limitation in the system and whether this limitation can be compensated in other parts of the link. Link budget and analysis is a reference basis for weighing the impact of system configuration changes and de...
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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