频率调制信号调制方式识别方法  

The Recognition Method of Frequency Modulated Signal

作　　者：武者东[1] 侯国涛[1] 孙中森[1] 柳颖[1] 

机构地区：[1]中国电波传播研究所,山东青岛266107

出　　处：《中国电子科学研究院学报》2015年第2期199-203,共5页Journal of China Academy of Electronics and Information Technology

摘　　要：为完成对FM,2FSK,4FSK,8FSK,MSK等频率调制信号的识别,在瞬时频率直方图统计图、信号功率谱、信号平方谱等提取特征,这些特征提取简单,计算量小.给出了频率调制信号识别算法,并利用实测数据验证算法的性能及算法对脉冲成形滤波器形状,频偏等因素的鲁棒性。To classify the type of signal such as FM, 2FSK, 4FSK, 8FSK, and MSK, a novel recognition scheme based on the feature of instantaneous frequency histogram, signal power spectrum and the power spectrum of the second power of signal is proposed. These feature parameters have the characters of easy extraction and small amount of calculations. It is illustrated by the test results for the performance of the algorithm using the actual data. Simulation results show that the algorithm is not sensitive to the type of pulse shaping filter or frequency offset.

关 键 词：频率调制信号 调制方式识别 瞬时频率直方图 谱特征 

分 类 号：TN934[电子电信—信号与信息处理]