短波电报信号自动检测技术研究综述

Review on Automatic Detection Techniques of High-frequency CW Signal

短波电报是强噪声背景下战术应急通信的重要通信手段。长期以来,人们一直致力于解决电报信号的自动检测问题,设法从含噪信号中提取报文信息,但到目前为止这一研究还远未达到预期的目标。首先概述了短波电报的应用现状、数学模型与基本信号特征,之后详细综述了现有短波电报自动检测相关技术的研究现状及其优缺点,基于此深入分析总结出制约短波电报信号自动检测的若干关键技术问题,最后指出了未来的研究方向及可行的技术手段。

High-frequency telegraph is a crucial communication technologies for High-frequency tactical communication in emergencies, tt has long been expected to exactly track the High-frequency telegraph signal in strong noise environment. But this problem is still considered open and research continues to find an ultimate solution. An overview of the application of High-frequency telegraph, its mathematical model and the basic eharaeteristics first were given. Then,a comprehensive summary of existing detection algorithm for telegraph signal was proposed, where the strength and weakness of each algorithm was diseribed in detail. Finally, the key technologies of automatic detection for High-fre- quency telegraph signal and the future research direction were discussed.