小卫星星座系统级EMC设计与验证

Design and Verification of System-level EMC for Small Satellite Constellation

针对小卫星星座系统级电磁兼容性(EMC)设计和验证的难度大、风险高等问题,从星座系统级EMC统筹设计和频率规划、星座系统EMC测试验证等方面,介绍小卫星星座系统级EMC设计及验证过程,提出基于最小资源占用的星座系统级EMC设计理念,以及基于模拟边界条件的逐级分步式EMC验证策略。小卫星星座应用实践结果表明:该设计理念可以显著降低星座频率资源、设备资源,减小EMC设计的频域隔离、空域隔离等难度;该验证策略可以尽早发现可能存在的EMC问题并及时解决,降低工程研制风险。设计理念和验证策略可行有效,可为复杂航天器系统的电磁兼容设计提供参考。

In order to solve the puzzle and high risk of small satellite system EMC(electromagne-tic compatibility)design and verification,the constellation system-level EMC design and verification procedure,which include the constellation EMC united design,frequency arrangement and constellation EMC verification are introduced in this paper.The design idea of constellation system-level EMC based on the minimal resources occupied and the step-by-step verification strategy based on simulated boundary are discussed,which are attested by one small satellite constellation.The design idea can evidently reduce the frequency and equipment resources,then reduce the EMC design difficulty on frequency and space isolation.The verification strategy can discover the EMC problems and solve them timely,then can reduce the EMC risk.The design idea and verification strategy can be reference of EMC implementation for other complex spacecraft.