短波窄带莫尔斯信号自动识别技术

Automatic identification technique of Morse signal in shortwave narrowband channel

短波环境中存在着大量令人感兴趣的莫尔斯信号,为了降低人工侦收成本,研究了莫尔斯信号在短波环境下的窄带信号自动识别技术。针对短波信道环境,提出一种联合时频域特征的快速识别算法,并给出短波环境下莫尔斯窄带识别算法的流程设计,最后获得算法的实测结果。实验结果表明,该算法下的莫尔斯识别具有较快的速度和较好的识别率,以及较低的虚警率和漏警率。

There are large amount of Morse signals of interest in shortwave environment.In order to reduce the workload of the related personnel,an automatic identification technique of Morse signals in shortwave narrowband channel is put forward.Based on analyzing the problems of Morse signal identification in short wave narrowband channel,a fast identification method combining with the characteristics of time and frequency domains is proposed and a new Morse signal identification process is designed.By using the proposed method,Morse signal can be identified very quickly with high identification probability,low leak alarm rate and false alarm rate.