Distortion Analysis Method of Aerospace Telemetry Signal

Abstract

The present invention relates to a distortion analysis method of aerospace telemetry signals. The method includes the following steps that: S1, standard filtered signals and test filtered signals areobtained; S2, cross-correlation analysis is performed on the standard filtered signals and the test filtered signals; and S3, an output device outputs an analysis result. According to the distortion analysis method of the invention, the standard spectrum data are directly used, and the test signals are converted into spectrum data, and therefore, comparison and analysis can be smoothly performed on the test spectrum data and the standard spectrum data, and the early-stage processing process of the test filtered signals and the standard filtered signals can be simplified. With the distortion analysis method adopted, the reduction of the time delay of the distortion analysis of test signals sent by a spacecraft can be benefitted, and the real-time performance of the analysis of the test signals of the spacecraft is better guaranteed.

Description

technical field [0001] The invention relates to a distortion analysis method for telemetry signals, in particular to a distortion analysis method for aerospace telemetry signals. Background technique [0002] During the spacecraft test process, it is necessary to establish a radio frequency link between the spacecraft and the ground test equipment, and transmit remote control instructions, telemetry data, image and voice data, etc. between the spacecraft and the ground through the radio frequency link. The radio frequency signal sent by the ground equipment is abnormal, and the radio frequency signal between the spacecraft and the ground is unstable due to interference factors such as multipath effect under the wireless state test state of the spacecraft. It is necessary to monitor and analyze the frequency spectrum of the radio frequency link. In the current comprehensive test of spacecraft, spectrum analyzers are usually used to receive radio frequency signals and display ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a distortion analysis method for aerospace telemetry signals, to solve the problem of signal distortion analysis delay

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