基于FRFT的域-包络曲线的雷达信号特征提取及自动分类

司锡才; 柴娟芳

doi:10.3724/SP.J.1146.2008.01181

基于FRFT的域-包络曲线的雷达信号特征提取及自动分类

doi: 10.3724/SP.J.1146.2008.01181

基金项目:

国家部级基金项目(A2420061104-06)资助课题

计量
- 文章访问数: 4041
- HTML全文浏览量: 90
- PDF下载量: 924
- 被引次数: 0
出版历程
- 收稿日期: 2008-09-22
- 修回日期: 2009-01-21
- 刊出日期: 2009-08-19

Feature Extraction and Auto-sorting to Envelope Function of Rotation Angle Domain of Radar Signals Based on FRFT

摘要

摘要: 提取和补充新的特征参数是解决复杂体制雷达辐射源信号分选和雷达目标识别难题的有效手段，为此该文提出一种基于FRFT的域-包络曲线特征向量的提取方法。该方法通过FRFT搜索得到旋转角域的包络曲线函数，提取出该曲线峰值所对应的值、峰值大小及包络曲线峰度这3个特征，构造新的特征向量，并以此作为经典参数的补充。同时，采用动态聚类法就所提取的特征向量分选空间雷达辐射源信号。大量的仿真结果表明，提取的新特征具有较好的类内聚敛和类间分离能力，还具有较好的抗噪声性能，证实了新特征向量作为信号分选参数的有效性和可行性。
- 雷达目标识别;雷达信号分选;分数阶傅里叶变换; 特征提取;动态聚类
Abstract: A feature vector extraction method to the envelope function in rotation angledomain of radar signals based on FRFT is proposed in this paper, because extracting the novel radar signal parameters is an effective method to solve the complex radar emitter signals sorting and radar target recognition problem. This method searches the envelope function ofdomain through FRFT firstly, extractsvalue corresponding of the peak, peak value and kurtosis of the envelope function to construct a new feature vector as the complement to classical parameters. At the same time, a dynamic cluster sorting method is used to complete the sorting work to radar emitters. A large number of simulation results show that, the new feature vector not only has strong compactness within clusters and large separation between clusters, but also has good anti-noise performance. And the results verify the feasibility and effectiveness of this new feature vector as the complement to classical parameters.

HTML全文

参考文献(1)

普运伟等. 雷达辐射源信号模糊函数主脊切面特征提取方法[J]. 红外与毫米波学报, 2008, 27(2): 133-137.Pu Yun-wei, et al.. Extracting the main ridge slicecharacteristics of ambiguity function for radar emittersignals[J]. J. Infrared Millim Waves, 2008, 27(2): 133-137.[2]Lopez-risueno G, Grajal J, and Yeste-Ojeda O, et al.. Atomicdecomposition-based radar complex signal interception[J].IEE Proc.-Radar Sonar Navig.2003, 150(4):323-331[3]朱明, 金炜东, 胡来招等. 基于原子分解的雷达辐射源信号二次特征提取[J]. 西南交通大学学报, 2007, 42(6): 659-664.Zhu Ming, Jin Wei-dong, and Hu Lai-zhao, et al.. CascadeFeature extraction for radar emitter signals based on atomicdecomposition[J]. Journal of Southwest Jiaotong University,2007, 42(6): 659-664.[4]Hu Hong-ying, Kang Jing, and Guan Li-na, et al..Instantaneous frequency estimation based on empirical modedecomposition. Proceedings of the 7th World Congress onIntelligent Control and Automation, Chongqing, China, June25-27, 2008.[5]黄知涛, 周一宇, 姜文利. 基于相对无模糊相位重构的自动脉内调制特性分析[J]. 通信学报, 2003, 24(4): 153-160.Huang Zhi-tao, Zhou Yi-yu, and Jiang Wen-li. The automaticanalysis of intra-pulse modulation characteristics based onthe relatively nonambiguity phase restoral[J]. J. of ChinaInstitute of Communication, 2003, 24(4): 153-160.[6]魏跃敏, 黄知涛, 王丰华等. 基于单脉冲相关积累的PSK 信号相位编码调制规律分析[J]. 信号处理, 2006, 22(2): 281-284.Wei Yue-min, Huang Zhi-tao, and Wang Feng-hua, et al..The analysis of PSK modulation rules based on the coherentintegration of single pulse[J]. Signal Processing, 2006, 22(2):281-284.[7]张贤达, 保铮. 非平稳信号分析与处理[M]. 北京: 国防工业出版社, 1998: 186-198.Zhang Xian-da, and Bao Zheng. Non-stationary SignalAnalysis and Processing [M]. Beijing: National DefenseIndustry Press, 1998: 186-198.[8]陶然, 齐林, 王越. 分数阶Fourier 变换的原理与应用[M]. 北京: 清华大学出版社, 2004: 55-57.Tao Ran, Qi Lin, and Wang Yue. Fractional FourierTransformation and Application of the Principle [M]. Beijing:Tsinghua University Press, 2004: 55-57.[9]祝正威. 雷达信号的聚类分选方法[J]. 电子对抗, 2005, 6:6-10.Zhu Zheng-wei. Clustering sorting method of radar signals[J],Electronic Warfare, 2005, 6: 6-10.[10]张明友, 汪学刚编著. 雷达系统(第二版)[M]. 北京: 电子工业出版社, 2006, 1: 247-286.Zhang Ming-you and Wang Xue-gang. Radar System (secondedition)[M]. Beijing: Electronic Industry Press, 2006, 1:247-286.[11]张发启等编著. 盲信号处理及应用[M]. 西安: 西安电子科技大学出版社, 2006, 10: 36-39.Zhang Qi-fa, et al.. Blind Signal Processing andApplication[M]. Xi,an: Xi,an Electronic Science andTechnology University Press, 2006, 10: 36-39.

施引文献

资源附件(0)

访问统计