高背景光噪声条件下的信号接收技术

Receiving Signal Under High Background Noise in Space Optic Communication Systems

讨论了背景光对空间光通信系统的影响，分析了背景光的主要来源和性质，研究了滤光片、接收视场、通光口径、工作带宽等工作条件对抑制背景噪声的作用及其参数的选择原则，给出了背景光功率的实测数据以及雪崩光电二极管（ＡＰＤ）噪声随背景光功率增加的测试结果。

This paper analyzes the sources of background noise and its characters of background noise in optical communication systems of space ,and the influence of background noise to systems is studied The optical of filter , the receiver field of view ,and the working bandwidth of systems of working conditions which restrain the background noise are discussed and the basic parameter principles of choice are also given