电讯技术2018，Vol.58Issue(5)：532-538,7.DOI:10.3969/j.issn.1001-893x.2018.05.007
乘积型指数滤波器及其在多目标时延估计中的应用
Product Exponential Filter and Its Application in Multi-target Delay Estimation
摘要
Abstract
The exponent filter is a newly proposed filter,whose output signal-to-noise ratio(SNR) and tar-get delay resolution changes when the exponent changes. With loss of a certain output SNR,the exponent filter can effectively improve the range resolution so as to improve the estimation precision of the delay esti-mation. However,in some cases,the output SNR and the delay resolution of only a single exponent filter still cannot reach the actual demand. Inspired by the product operation of the product high-order ambigui-ty function,the advantages of multiple exponent filter is integrated to form a product exponential filter,and the output SNR and range resolution of this filter is analyzed. The simulation results show that the proposed product exponential filter has a better delay estimation performance than the conventional matched filter in a certain input SNR situation,and it is suitable for multi-target delay estimation in complex background as its algorithm is simple to achieve.关键词
多目标时延估计/指数滤波器/匹配滤波器/时延分辨力Key words
multi-target delay estimation/exponential filter/matched filter/range resolution分类
信息技术与安全科学引用本文复制引用
张路,季袁冬..乘积型指数滤波器及其在多目标时延估计中的应用[J].电讯技术,2018,58(5):532-538,7.基金项目
国家自然科学基金资助项目(11401405,61701329) （11401405,61701329）
