基于Kolmogorov-Smirnov检验的APSK信号星座图样式识别  

Constellation Diagram Style Recognition of APSK Signals via Kolmogorov-Smirnov Test

作　　者：乔晓青[1] 王世练[1] 张炜[1] 付永明[1] 

机构地区：[1]国防科学技术大学电子科学与工程学院,湖南长沙410073

出　　处：《通信对抗》2016年第1期8-12,共5页Communication Countermeasures

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.

关 键 词：APSK信号 星座图样式识别 Kolmogorov-Smirnov检验 

分 类 号：TN911.3[电子电信—通信与信息系统]