一种新的非瑞利信道的多普勒估计算法  

New Algorithm for Non-rayliegh Channel Doppler Estimation

作　　者：高原[1] 陈伟[1] 龙必起[1] 

机构地区：[1]武汉理工大学信息工程学院,湖北武汉430070

出　　处：《电视技术》2008年第11期20-22,共3页Video Engineering

摘　　要：针对多径信道中非瑞利环境,提出了基于信道冲激响应相位信息进行多普勒估计的方法。提出了局部最大径的找径方法和径的轨迹跟踪方法,分析了估计误差并提出减小误差的误差修正因子配置方法,使得算法估计更准确、估计精度不受信噪比影响。In allusion to non-rayleigh muti-path channel, a new algorithm based on the phase information of channel impulse response is presented in this paper. Methods of partial maximal path, path tracing are presented, and estimation error is analyzed. And then, the error correcting modified method is presented. And thus, the estimation precision is improved and not influenced by SNR.

关 键 词：多普勒频率 相位变化 非瑞利信道 

分 类 号：TN929.5[电子电信—通信与信息系统]