电讯技术Issue(8)：1001-1005,5.DOI:10.3969/j.issn.1001-893x.2013.08.006
基于Ozaktas算法的LFM信号参数估计误差分析*
Error Analysis of LFM Signal Parameter Estimation Based on Ozaktas Algorithm
摘要
Abstract
Ozaktas algorithm is the most popular discrete fractional Fourier transform algorithm used to process LFM signals,for its low computation complexity,high accuracy and earlier appearance . However,its additive dimensional normalization may affect parameter estimation of LFM signals . Therefore,2-D discrete grid effect is analyzed for parameter estimation using Ozaktas algorithm based on the parameter estimation model of LFM sig-nals . Further,those factors influencing estimation accuracy are obtained . It can be found that parameter estima-tion based on Ozaktas algorithm can keep high accuracy only if sampling follows the sampling theorem . Increas-ing sampling frequency or decreasing sampling duration can improve estimation accuracy to some extent . Finally, the simulations are made to prove the above-mentioned theories .关键词
离散分数阶Fourier变换/Ozaktas算法/LFM信号/参数估计/估计精度Key words
discrete fractional Fourier transform/Ozaktas algorithm/LFM signal/parameter estimation/estimation accuracy分类
信息技术与安全科学引用本文复制引用
邓兵,崔世麒,王旭..基于Ozaktas算法的LFM信号参数估计误差分析*[J].电讯技术,2013,(8):1001-1005,5.基金项目
国家自然科学基金资助项目（60902054）；中国博士后科学基金资助项目（201003758，20090460114）；山东省“泰山学者”建设工程项目 （）
