Wigner高阶矩谱在分析相控阵探地雷达数据中的应用

Wigner高阶矩谱在分析相控阵探地雷达数据中的应用 Analysis of Data by Wigner Higher-Order Moment Spectra Methods for Phased-Array Ground Penetrating Radar 孙骏 SUN Jun 1 2 first-author 陈淑珍 CHEN Shu-zhen 1 2 邹炼 ZOU Lian 1 2 武汉大学电子信息学院 武汉大学电子信息学院 School of Electronic Information, Wuhan University School of Electronic Information, Wuhan University 武汉大学电子信息学院,湖北,武汉,430072 武汉大学电子信息学院,湖北,武汉,430072 将一种改进的Wigner高阶矩谱应用于相控阵探地雷达数据分析,研究了不同时频方法、参数、相位对时频图的影响.实验结果表明利用Wigner高阶矩谱良好的时频特性解决了传统雷达数据信号分析方法要求信号分布是高斯的、平稳的、最小相位的问题,通过解析预处理和加核函数克服了其他时频分析方法时频集聚性差、分辨率低、频率混叠、交叉干扰的缺陷.说明该方法能有效分析相控阵探地雷达数据. The paper applies Wigner higher-order moment spectra of a kind of improvement to GPGR data analysis, studies the effect of different time-frequency methods, parameters, phases to time-frequency figure. The paper resolves the problem that traditional radar data requires the signal is Gauss, steady and minimal phase by using the good time-frequency characteristic of Wigner higher-order moment spectra, （overcomes） the limitation of other time-frequency methods. The experimental result shows that the application of Wigner higher-order moment spectra method of the kind of improvement takes effect in GPGR data analysis. 时频分析 高阶统计量 相控阵探地雷达 Wigner高阶矩谱 time-frequency analysis higher-order statistics PGPR（phased-array ground penetrating radar） Wigner higher-order moment spectra TN959 国家863计划资助项目（2001AA132050 03）;国家自然科学基金资助项目（50099620）;长江水利委员会联合资助 2004-05-01 2021-04-01 5