计算机工程与应用Issue(12)：216-219,4.DOI:10.3778/j.issn.1002-8331.1206-0449
一种LFM信号参数估计的新方法
New method for parameter estimation of LFM signal
摘要
Abstract
A new method based on reduced dimension is proposed for parameter estimation of Linear Frequency Modula-tion(LFM)signal. The basic idea is to estimate center frequency by a mathematical transformation, which translates the center frequency estimation to the frequency estimation of a sinusoid wave, and then the chirp rate is estimated by using Dechirp technology and one point DFT at the corresponding center frequency. The proposed method improves estimation precision, reduces computation. The simulation shows the validity of the method.关键词
参数估计/线性调频信号/离散傅里叶变换(DFT)/频谱细化Key words
parameter estimation/linear frequency modulation signal/Discrete Fourier Transform(DFT)/spectrum subdivision分类
信息技术与安全科学引用本文复制引用
冯维婷,张宝军..一种LFM信号参数估计的新方法[J].计算机工程与应用,2014,(12):216-219,4.基金项目
陕西省自然科学基金（No.2009JM8015）；陕西省教育厅专项科研项目（No.2010JK815）。 （）
