Abstract: To extract the available parameters of conventional communication signals from complex electromagnetic circumstance, a real-time sorting method of conventional communication signals, based on a single received channel, is proposed. The sorting method consists of three parts, narrowband signal detection, parameter estimation and tracking. Hence, a detection and parameter estimation method of narrowband signals is first proposed in additive Gaussian color noise. A narrowband signal tracking algorithm is then discussed which is able to track conventional communication signals in real time. At last, the simulation results show that the ratio of correctly detecting the number of narrowband signals is not less than 92% at signal-to-noise ratio（SNR） 0 dB. The sorting method is able to obtain the available parameters of conventional communication signals from complex electromagnetic circumstance, and valuable in practical engineering.

Key words: signal sorting, signal detection, parameter estimation, signal tracking

摘要： 为了能够从复杂电磁环境中提取常规通信信号的有效参数，研究了一种基于单天线接收的常规通信信号的实时分选方法。该方法由窄带信号检测、参数估计、信号跟踪三部分组成。提出了一种适用于高斯色噪声背景的窄带信号检测与参数估计的方法，给出了一种能够实时跟踪常规通信信号的算法。仿真结果表明，当信噪比高于0 dB时，窄带信号检测方法的正确率为92%以上，分选算法能够从复杂电磁环境中提取常规通信信号的有效参数，具有一定的工程实用价值。

关键词: 信号分选, 信号检测, 参数估计, 信号跟踪