基于脉冲描述字的信号调制识别技术研究

Research on Signal Modulation Recognition Technology Based on PDW

在同时存在雷达信号和通信信号的复杂信号环境下,基于脉冲描述字(pulse description word,PDW)的信号调制识别技术,利用数字信道化接收机所具备的同时到达信号处理能力,实现了多信号分离.进而采用瞬时频率分析法和小波变换频域特征分析法,完成了多种雷达信号及通信信号的调制类型识别及参数提取.仿真实验结果验证了本文方法的有效性.

Under the complex environment including both radar signals and communication signals,a signal modulation recognition proposed,based on pulse description word（PDW）,realizes multiple signal separation using the ability of the digital channelized receiver to process simultaneous arrival signals.It can accomplish the modulation type recognition and the parameters extraction depending on instantaneous frequency analysis and wavelet transform analysis.The simulation test results demonstrate the effectiveness of this proposed method.