Influence Analysis and Verification of Equipment Electromagnetic Radiation on GEO SAR Payload
- Resource Type
- Conference
- Authors
- Zhang, Yuting; Xiao, Miao; Wang, Zhenxing; Ni, Chong; Liu, Liping; Tang, Zhihua
- Source
- 2022 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC) Electromagnetic Compatibility (APEMC), 2022 Asia-Pacific International Symposium on. :388-390 Sep, 2022
- Subject
- Fields, Waves and Electromagnetics
Satellite antennas
Satellites
Electronic equipment
Interference
Electromagnetic radiation
Electromagnetic compatibility
Radar polarimetry
GEO SAR
hierarchical electromagnetic compatibility analysis
reciprocity theorem
multi frequency interference verification
imaging evaluation
- Language
- ISSN
- 2640-7469
Aiming at the higher electromagnetic compatibility control requirements of GEO SAR satellite, this paper studies the analysis and verification technology of the electromagnetic radiation influence produced by the electronic equipment on SAR payload during the development of equipment and subsystems. A hierarchical electromagnetic compatibility analysis method is proposed to reduce the difficulty of electromagnetic compatibility analysis of complex satellite system with multi feeds and multi beam positions of SAR Antenna. Based on the reciprocity theorem of electromagnetic field, the RE102 test results of electronic equipment are directly applied to the electromagnetic compatibility analysis. The multi frequency interference verification method is adopted to solve the problem that the traditional frequency sweep test method cannot characterize the coexistence of multi frequency interferences in the actual electromagnetic environment. A verification system based on SAR imaging index is designed, which improves the evaluation accuracy compared with the method based on telemetry parameter judgment. The research content of this paper is of certain significance to ensure the electromagnetic compatibility of GEO SAR satellite system.