一种估计LFM信号参数的快速算法及其推广
Journal Title: Science Paper Online - Year 2009, Vol 4, Issue 10
Abstract
提出一种估计线性调频(LFM)信号参数的快速算法，该算法利用计算信号的WVD(wigner-ville distribution)得到其时间－频率值的二维分布，进而通过计算不同的时间采样点所对应的频率值来获取LFM信号的调频斜率以及初始频率的估计。算法的实现只需进行一维搜索，计算量小。分析该算法的统计特性，得到LFM信号参数估值均方误差的理论表达式。同时，对该算法进行推广，推广后的算法可用来估计多项式相位信号的参数。最后，通过计算机仿真实验验证算法的有效性。
Authors and Affiliations
Yong Wang, Yicheng Jiang
Keywords
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