现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2014年
19期
6-9,13
,共5页
小波包%能量熵%近邻传播%半监督AP聚类%信号分选
小波包%能量熵%近鄰傳播%半鑑督AP聚類%信號分選
소파포%능량적%근린전파%반감독AP취류%신호분선
wavelet packet%energy entropy%affinity propagation%semi-supervised AP clustering%signal sorting
雷达信号分选是现代高技术战争和将来信息化战争中至关重要的环节,是电子战的重要组成部分。从时频分析的角度出发,不同调制方式的信号会在某些频带内具有不同的分解系数,这些差异性使得小波包提取的特征能够进行信号调制方式的识别。提取信号小波包能量熵的统计特征,利用改进的半监督近邻传播聚类算法对特征进行聚类分析。与直接半监督近邻传播聚类算法和传统近邻传播算法比较,改进的半监督近邻传播聚类算法性能更优,准确率更高,而且聚类数更加接近实际聚类数。
雷達信號分選是現代高技術戰爭和將來信息化戰爭中至關重要的環節,是電子戰的重要組成部分。從時頻分析的角度齣髮,不同調製方式的信號會在某些頻帶內具有不同的分解繫數,這些差異性使得小波包提取的特徵能夠進行信號調製方式的識彆。提取信號小波包能量熵的統計特徵,利用改進的半鑑督近鄰傳播聚類算法對特徵進行聚類分析。與直接半鑑督近鄰傳播聚類算法和傳統近鄰傳播算法比較,改進的半鑑督近鄰傳播聚類算法性能更優,準確率更高,而且聚類數更加接近實際聚類數。
뢰체신호분선시현대고기술전쟁화장래신식화전쟁중지관중요적배절,시전자전적중요조성부분。종시빈분석적각도출발,불동조제방식적신호회재모사빈대내구유불동적분해계수,저사차이성사득소파포제취적특정능구진행신호조제방식적식별。제취신호소파포능량적적통계특정,이용개진적반감독근린전파취류산법대특정진행취류분석。여직접반감독근린전파취류산법화전통근린전파산법비교,개진적반감독근린전파취류산법성능경우,준학솔경고,이차취류수경가접근실제취류수。
Radar signal sorting is a crucial aspect in modern high-tech warfare and information warfare,and is also an im-portant part of electronic warfare. In the perspective of time-frequency analysis,the signals of different modulation modes have different decomposition coefficients in some bands,and these differences allow the features extracted by the wavelet packet to recognize the modulation modes of signals. The cluster analysis of the statistical characteristics of signal wavelet packet energy entropy is performed by the improved semi-supervised affinity propagation clustering algorithm. Compared with other two algo-rithms,the improved semi-supervised affinity propagation algorithm is more effective and its accuracy is higher. In addition,the number of clustering is closer to the actual number.