一种FM-CW信号非线性估计方法  

Method for non-linearity estimation of FM-CW signal

作　　者：李鹞[1] 章军[1] 林大勇[2] 罗庆忠[1] 

机构地区：[1]国防科学技术大学电子科学与工程学院,湖南长沙410073 [2]济南军区联勤部,山东济南250000

出　　处：《现代电子技术》2012年第9期7-9,共3页Modern Electronics Technique

摘　　要：线性调频连续波是雷达系统的一种常用信号形式。分析了线性调频连续波合成孔径雷达的调频非线性对距离维成像的影响,在此基础上,针对一种基于"虚拟目标"的非线性估计方法进行了分析,给出了基于该方法实用的计算方法,并分析了该计算方法的性能。仿真结果表明,给出的计算方法能较精确地估计出调频信号的非线性。The linear frequency modulated continuous wave is commonly adopted in radar system.The effect of non-linear frequency modulation to range resolution of LFM-CW SAR radar is analyzed in this paper.a ＂virtual target＂ nonlinear estimation method that had application in practical is analyzed,a process based on the method is proposed,and the performance of the calculation is analyzed.The simulation results show that the nonlinear frequency modulation is estimated accurate using the process in this paper.

关 键 词：线性调频连续波雷达 非线性 误差估计 虚拟目标 

分 类 号：TN953.234[电子电信—信号与信息处理]