完整word版-FSK通信系统设计

目 录摘要..................................................................................................................................................Ι1 数字带通传输系统......................................................................................................................11.1 定义........................................................................................................................................................11.2 数字调制技术方法................................................................................................................................12 FSK 频移键控.............................................................................................................................22.1 基本原理.............................................................................................................................22.2 功率谱密度.........................................................................................................................53 FSK 通信系统设计思路..............................................................................................................63.1 系统分析...............................................................................................................................63.2 模块分析...............................................................................................................................64 系统电路设计与结果验证.........................................................................................................94.1 M 序列的产生.......................................................................................................................94.2 分频电路.............................................................................................................................104.3 波形变换电路.....................................................................................................................114.4 调制...