PCM/FM再入遥测系统建模及仿真

基于再入遥测实际系统，提出了一种简化的PCM／FM系统仿真模型，重点分析了再入遥测信道双径模型的特性。当传翰码速率较高的情况下，再入遥测信道呈现频率选择性衰蓉特性，双径模型可以很好的模拟这种频率选择性信道．对整个系统的仿真有利于清楚了解各个主要部件对系统性能的影响，仿真过程为自适应均衡器提供了实验数据．

Model and Simulation of PCM/FM Reentry Remote Sensing System

Based on the actual Reentry Remote Sensing System, a simplified simulation model of PCM/FM system was proposed, especially emphasizing the character of two-path model. When transmitting signal at high bit rate, the Reentry Remote Sensing channel presented an obvious character of frequency selective fading and the two-path model could well model this channel. Through simulating the whole system, how every main part influenced the performance of the whole system could be clearly comprehended. The simulation results provide experimental data for the adaptive equalizer.