摘要
对多径传播信号进行建模,通过仿真分析了多径传播对目标回波幅度、功率谱性能的影响。根据其影响,在测控系统中对距离零值的标定,提出了分辨真实信号目标距离和多径干扰目标距离的方法,为理论和实际应用提供了很好的依据。
A model for the multi - path propagation signal is established. Through simulation the influence of multipath propagation on the targets echo magnitude and spectrum characteristics is analysed. According to the influence, a method to distinguish the real signal target distance and multipath interference target distance for equipment time delay（ETD） calibration is proposed in TT＆C system. This method provides good foundation for theoretical and practical application.
出处
《电讯技术》
2008年第9期60-62,共3页
Telecommunication Engineering
关键词
测控系统
多径传播
距离零值
零值标定
TT＆C system
multi - path propagation
equipment time delay （ETD）
ETD calibration
