Discovery and evaluation method and module of spread spectrum transponder performance change on orbit satellite
A spread-spectrum transponder, transponder technology, applied in satellite radio beacon positioning systems, instruments, measuring devices and other directions
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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 receiver performance degradation of the on-orbit satellite spread spectrum transponder cannot be detected intuitively in time, the present invention provides a method for discovering and evaluating the performance change of the on-orbit satellite spread spectrum transponder. 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 amplifier circuit, a local oscillator circuit, or an AGC circuit problem, the direct manifestation may be u...
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