对数零相位谱在雷达目标识别中的应用研究  

Application of logarithm zero phase spectra in radar targets recognition

作　　者：冷家旭[1] 黄惠明[1] 龙方[1] 

机构地区：[1]北京跟踪与通信技术研究所,北京100094

出　　处：《航天电子对抗》2010年第3期58-60,64,共4页Aerospace Electronic Warfare

摘　　要：高分辨距离像的频谱相位包含了大部分目标信息,对数零相位谱特征能够保留这些信息,且具有平移不变性。提出一种对数零相位谱最小距离雷达目标识别方法,并利用外场实测数据计算仿真,比较了最小欧氏距离与最小马氏距离准则下对数零相位谱的识别性能,同时与功率谱、幅度谱做对比,验证了该方法的可行性与有效性。The spectra phase of high resolution range profiles has the most target information, and it is well known that the logarithm zero phase spectra is a new kind of shift-invariant feature and preserves all the phase signals but the shift. Due to the above character,a novel radar targets recognition scheme is proposed based on the a minimum distance criterion of logarithm zero phase spectra. Using the minimum Euclidean distance and minimum Mahalanobis distance classifier, the performance of logarithm zero phase spectra is compared with the power spectra and amplitude spectra. The computer simulations with the acquired outfield data verify the feasibility and validity of the scheme.

关 键 词：高分辨距离像 目标识别 对数零相位谱 

分 类 号：TN957.52[电子电信—信号与信息处理]