计算机应用研究Issue(1)：178-180,188,4.DOI:10.3969/j.issn.1001-3695.2016.01.041
基于遗传算法的时频差快速估计
Fast algorithm for estimation of TDOA and FDOA based on genetic algorithm
摘要
Abstract
The calculation is large to estimate the time difference of arrival (TDOA)and frequency difference of arrival (FDOA)with cross ambiguity function.Existing algorithms based on the ergodic theory have poor real-time performance.To solve this problem,this paper developed the genetic algorithm with improvements based on the characteristics of cross ambigui-ty function.With the self-adapting mutation probability by following the convergence extent of the population and multiple popu-lation initialization,the diversity of the population was effectively improved to prevent the algorithm into a local optimum.The simulation results show that the computational efficiency of the improved algorithm,compared with the existing algorithms,is greatly improved,and the TDOA /FDOA estimation results can quickly be obtained.关键词
遗传算法/互模糊函数/时差估计/频差估计/无源定位Key words
genetic algorithm/cross ambiguity function/TDOA/FDOA/passive location分类
信息技术与安全科学引用本文复制引用
逯志宇,王建辉,王大鸣,王跃..基于遗传算法的时频差快速估计[J].计算机应用研究,2016,(1):178-180,188,4.基金项目
国家“863”计划资助项目 （）
