Method for positioning electromagnetic interference of spacecraft in non-darkroom environment

Abstract

The invention discloses a method for positioning electromagnetic interference of a spacecraft in a non-darkroom environment, and the method achieves the screening of electromagnetic radiation interference signals of the spacecraft based on the ratio of a sensitivity threshold value to an interference threshold value of a spacecraft radio frequency receiving subsystem obtained through calculation. The method can effectively identify signals causing interference to a spacecraft radio frequency receiving subsystem, improves the pertinence and efficiency of test and identification, and solves a problem that a sensitivity threshold value of a single-point frequency signal is not consistent with an actual application condition.

Description

technical field [0001] The invention belongs to the technical field of spacecraft electromagnetic compatibility, and in particular relates to a positioning method for spacecraft electromagnetic interference in a non-darkroom environment. Background technique [0002] With the increasing complexity of the electromagnetic environment of spacecraft, electromagnetic compatibility has increasingly become an indicator that needs to be paid attention to in spacecraft design. Therefore, the electromagnetic compatibility test has become a special test that needs to be carried out in the spacecraft development stage. However, with the complexity and diversification of spacecraft types, some spacecraft cannot be tested in traditional electromagnetic compatibility laboratories. Spacecraft testing, such as spacecraft with large reflector antennas; high-power spacecraft cannot be tested because the power requirements are not met; high microwave radiation intensity loads cannot be tested ...

AI Technical Summary

Problems solved by technology

[0005] To sum up, the existing methods mainly have the following problems: first, it is impossible to eliminate the interference signal in the actual environment, and it is difficult to meet the requirements of the spacecraft for electromagnetic radiation control; second, it is impossible to accurately estimate the signal, and it is difficult to meet the requirements of the spacecraft electromagnetic radiation test Accuracy requirements; third, the signal that interferes with the satellite radio frequency receiving system cannot be identified separately, and it is difficult to meet the performance requirements of spacecraft testing

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