通信卫星地平信号的自适应观测处理器

本文分析了国际上通用的以地平边缘的红外辐射信号作为卫星天线系统基准信号所存在的问题,应用控制理论和数字计算原理,提出了地平信号“取中”的自适应处理方法。依据这一方法,在我国通信试验卫星控制系统设计中,设计了地平信号自适应观测处理器,给出稳定的“地中”信号,作为自旋卫星天线消旋系统的基准信号。通过误差分析以及地面模拟试验和几次飞行试验充分证明,本文所提出的红外地平信号“取中”设计方案的正确性。此方案优于国际通用的红外地平“边缘”方案。

SELF-ADAPTIVE PROCESSOR FOR DETECTING EARTH HORIZONTAL SIGNAL IN A COMMUNICATION SATELLITE

The paper analyzes the problems existed in the world general method in which a infrared radiation signal of the Earth edge is used as reference signal for antenna system in satellite, and puts forward an Earth centre self-adaptive determination method in accordance with control theory and numeric calculation principle.According to the method, a self-adaptive processing system for detecting Earth horizontal signal was realized in the control system in our communication satellites, the correctness of the method has been proved by its logic function, wave form, error analysis and calculation, and ground simulation tests and flight tests. The method is better than the world general one.