华中科技大学学报：自然科学版2012，Vol.40Issue(3)：18-21,4.
基于电平交叉率的多普勒频移估计方法
Doppler frequency shift estimation method based on level crossing rate
摘要
Abstract
According to the demand of maximum Doppler frequency estimation on the received signal in the Rice channel,on the basis of the tradition Doppler frequency shift estimation method based on the level crossing rate,a iterative design was introduced to make the bandwidth of the receiving filter achieve optimal,then the Doppler frequency shift was estimated based on the level crossing rate after the received signal through filtering optimally,which slowed down the effect of noise on the performance of estimation greatly.The complexity of the novel method has increased,but the novel method can estimate the frequency shift more accurately than the tradition method in the Rice channel.Simulation results show that the method can estimate the Doppler frequency shift accurately and effecti-vely.关键词
滤波器/多普勒频移/电平交叉率/莱斯信道/循环迭代/估计Key words
filter/Doppler frequency shift/level crossing rate/Rice channel/iteration/estimation分类
信息技术与安全科学引用本文复制引用
黄敏,李兵兵,贾琼,曾海..基于电平交叉率的多普勒频移估计方法[J].华中科技大学学报：自然科学版,2012,40(3):18-21,4.基金项目
国家高技术研究发展计划资助项目 （）
国家自然科学基金资助项目 （）
