Method and module for discovering and evaluating performance changes of orbit satellite spread spectrum transponder
A technology of spread spectrum transponder and evaluation module, which is applied in the direction of satellite radio beacon positioning system, measuring device, instrument, etc., to achieve the effect of easy engineering implementation, moderate calculation amount, simple and efficient method
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[0036] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0037] Aiming at the difficult problem that the performance degradation of the spread spectrum transponder receiver of the satellite in orbit cannot be detected directly in time, the present invention provides a method for discovering and evaluating the performance change of the spread spectrum transponder of the satellite in orbit, and can detect the malfunction or performance of the spread spectrum transponder receiver. It is of great significance to detect and deal with the decline in time.
[0038] There are very few parameters that can reflect the state of the spread spectrum transponder, and the AGC (Automatic Gain Control) level is one of them, which can directly and comprehensively characterize whether the transponder receiver is working normally or not in real time. Whether it is a low-noise amplifier problem, a frequency mixing intermediate ampli...
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