基于高次模糊函数的SAR图像动目标检测

journal6 ›› 2007, Vol. 28 ›› Issue (6): 77-80.

基于高次模糊函数的SAR图像动目标检测

(1.南京航空航天大学，江苏南京 210016；南京电子技术研究所，江苏南京 210013)

出版日期:2007-11-25 发布日期:2012-06-10
作者简介:聂至彪(1976-)，男，河北晋州人，南京航空航天大学硕士生，主要从事导航制导与控制研究.
基金资助:
国家航空部科学基金资助项目(2006ZC52036)

Detection of Multi Moving Targets in a SAR Image Based on High-Oder Ambiguity Function

(1.Univ. of Aeronaut and Astronaut.,Nanjing 210016,China；2.Institute of Electronic Technology，Nanjing 210013，China)

Online:2007-11-25 Published:2012-06-10

摘要/Abstract

摘要：SAR图象中动目标运动形成的相位误差可描述为有限次幂级数，时频分析将时域信号变换为时频联合域，揭示出信号瞬时频率随时间的变化规律，应用高次模糊函数可估计出动目标信号的相位多项式系数，检测含高次相位误差的动目标，结合逐次消去法，可将其用于检测含高次相位误差的多个动目标.

关键词： 合成孔径雷达, 移动目标检测, 高次模糊函数

Abstract: The time-frequency analysis can transform the time domain signal into time-frequency domain,and reveal the law of frequency changing with time.Combining with “clean” technique,the authors propose a multi moving targets indication method based on the modeling of instantaneous phase,induced by the relative radar/target motion,as a generic order polynomial and on the estimation of the polynomial coefficients by the so-called product high-order ambiguity function. The simulation experiment result proves this method to be valid.

Key words: synthetic aperture radar, moving target detection, high order ambiguity function

聂志彪, 余海峰, 夏文庆, 陈广东. 基于高次模糊函数的SAR图像动目标检测[J]. journal6, 2007, 28(6): 77-80.

NIE Zhi-Biao, YU Hai-Feng, XIA Wen-Qing, CHEN Guang-Dong. Detection of Multi Moving Targets in a SAR Image Based on High-Oder Ambiguity Function[J]. journal6, 2007, 28(6): 77-80.

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