摘要
针对APSK卫星通信信号星座图样式不唯一、信号特征相似度高而难以识别的问题,提出基于Kolmogorov-Smirnov检验的识别算法。对于给定的星座图样式备选集合,通过计算接收信号与参考信号经验累积分布的相似度,判决最接近的参考信号星座图样式为接收信号的识别结果。MATLAB仿真表明,与基于星座图恢复的识别方法相比,该算法在给定的数据长度和中等信噪比条件下,可得到更高的识别概率。
For the constellation style of APSK satellite communication signal is not unique,the signal charac- teristics similar to the high and difficult to identify,recognition algorithm based on Kolmogorov-Srnimov test is proposed.For a given constellation optional style set,by calculating the similarity of the empirical cumulative distribution between the received signal and the reference signals,ruling the closest constellation style of refer- ence signals as the recognition result of received signal.MATLAB simulations show that, compared with the recognition method based on the constellation recovery,the application of this algorithm at a given data length and moderate signal-to-noise ratio （SNR） gets a higher probability of correct recognition.
出处
《通信对抗》
2016年第1期8-12,共5页
Communication Countermeasures
