AWGN下差分跳频通信系统的性能分析

本文介绍了一种新型的短波跳频通信技术——差分跳频,频率转移函数设计和信号的检测方法是差分跳频中的关键技术。针对逐符号检测和按序列检测两种信号检测方法,分别对差分跳频通信系统在AWGN条件下的性能进行了理论分析,同时做出相应的计算机仿真,证实了差分跳频通信技术和按序列检测方法的结合,使通信系统的在AWGN下性能得到了比较显著的提升。

Performance analysis of Differential Frequency Hopping System in AWGN

This paper presents a new HF hopping system, which is called Differential Frequency Hopping (DFH) system. The frequency transition function and the method of signal detection are the key technologies in this system. Detection symbol by symbol and detection by sequence are two kinds of methods of signal detection. The performance in AWGN by using these two methods is analyzed respectively in theory, and the corresponding simulation results are given, all these prove that the performance of DFH system with signal detection by sequence is much better than ordinary frequency hopping system.