中继卫星地面站前向链路瞬时畸变信号抓取系统设计与实现

Design and Implementation of Instantaneous Distortion Signal Capture System for Forward Link of Relay Satellite Ground Station

针对中继卫星地面站前向数传链路闪断,常规手段难以检测的问题,提出了基于多参量触发的瞬时畸变信号时域波形抓取方法,设计并实现了瞬时畸变信号抓取系统。结合地面站前向链路实际,设计了抓取系统应用模式,通过测试,验证了系统对链路瞬时畸变信号具有精确抓取能力,为前向链路闪断故障定位和机理分析提供了准确有效的数据支撑,有效解决了瞬时畸变信号的准确快速抓取问题,可应用于同类地面站上、下行链路设备的故障诊断。

The flash break of forward data transmission link in relay satellite ground station was difficult to detect by conventional means.To solve this problem,the time domain waveform capture technology of instantaneous distortion signal based on multi-parameter trigger was proposed.The actual capture system was designed and realized.Combined with the actual link of the ground station,the application mode of the capture system was designed.Through the test,the accurate grasping ability of the system was verified which could provide accurate and effective data support for forward link flash fault location and mechanism analysis.This technology can effectively solve the problem of the accurate and fast capture of instantaneous distortion signal and may be applied to the fault diagnosis of uplink and downlink equipment in similar earth stations.