摘要
文章讨论了复杂卫星系统的频谱分析思路和方法,通过对卫星射频系统的工作频段组合的线性计算,可以找到如谐波、互调等非线性干扰所引起的潜在电磁兼容问题。介绍了用LabView平台开发的一个频谱分析软件及其在具体型号中的应用界面,将已知的卫星射频分系统的一些收发设备相关频率信息输入该软件中,可以计算出各收发设备之间可能存在的干扰对。
The philosophy and methodology of frequency spectrum analysis for complicated satellite systems are discussed. With a linear computation of any coupling working frequency bands of each satellite radio subsystem, the potential EMC problems caused by nonlinear interference, such as harmonic and inter-modulation, could be identified. The paper presents a frequency spectrum analysis software based on LabView and its application interfaces for practical satellite models. With the working frequency and information of radio frequency equipment as input of this software, any interference couplings between receivers and transmitters could be identified.
出处
《航天器环境工程》
2009年第5期485-488,400,共4页
Spacecraft Environment Engineering
