摘要
研究了步进频率信号运动目标成像新方法。首先推导了步进频率信号合成扩展目标距离像原理;基于离散傅里叶变换理论,分析了运动导致的步进频率信号合成距离像失真,提出了相位因子对消合成运动目标距离像方法。新方法不需要估计运动速度。仿真结果证明了该算法效果。
In this paper, a new method is explored for synthesizing range profile of a moving target via stepped frequency signal. The principle of synthesizing range profile of an extended target is investigated for stepped frequency signal. The distortion of synthetic range profiles is discussed with the theory of Discrete Fourier Transform （DFT）. Based on phase cancellation, a new technology is proposed to achieve range profile with out distortion for a moving target. The new technology does not need the estimation of the velocity. The result of emulation proves the effect of the method.
出处
《电子与信息学报》
EI
CSCD
北大核心
2007年第4期815-818,共4页
Journal of Electronics & Information Technology
基金
国家部级基金资助课题
关键词
频率步进信号
离散傅里叶变换
距离像
多普勒效应
Stepped frequency signal
Discrete Fourier Transform（DFT）
Range profile
Doppler effect
