空军工程大学学报（自然科学版）2016，Vol.17Issue(5)：59-64,6.DOI:10.3969/j.issn.1009-3516.2016.05.011
规范化自相关函数的复杂PRI调制样式识别
A Recognition Algorithm for Complicated Radar PRI Modulation Modes Based on Normalized Autocorrelation Function
摘要
Abstract
In order to recognize complicated PRI modulation modes,a classify algorithm based on autocorre-lation and normalization is proposed.The algorithm defines three characteristic quantities,i.e.density of peak value,intension of monotone and energy of sequence,and the paper sets up feature space after mak-ing autocorrelation and normalization to four PRI impulse sequences.By comparing the characteristic quali-ty with the threshold value,PRI modulation mode can recognize automatically.The result shows that the recognition accuracy can reach to 95% when the numbers of pulse are 100 and the SNR is 4 dB,and the recognition accuracy can reach 95.5% when the numbers of pulse are only 80.The algorithm can maintain more than 93% of accuracy when the ratio of the pulse�losing reaches 25% and the numbers of impulse are 100.关键词
PRI调制样式/自相关函数/雷达辐射源识别/特征提取/规范化Key words
PRI modulation mode/autocorrelation function/recognition of radar emitter/feature extrac-tion/normalization分类
电子信息工程引用本文复制引用
史忠亚,吴华,周一鹏,陈游,沈文迪..规范化自相关函数的复杂PRI调制样式识别[J].空军工程大学学报（自然科学版）,2016,17(5):59-64,6.基金项目
航空科学基金(2012JQ8019) （2012JQ8019）
