基本信息:
- 专利标题： Multipath interference equalization filter, and the receiving device
- 专利标题（中）：空值
- 申请号：JP2010188064 申请日：2010-08-25
- 公开(公告)号：JP5518635B2 公开(公告)日：2014-06-11
- 发明人： 政行 高橋 , 英男 大澤
- 申请人： 日本無線株式会社
- 专利权人： 日本無線株式会社
- 当前专利权人： 日本無線株式会社
- 优先权： JP2010188064 2010-08-25
- 主分类号： H04B1/10
- IPC分类号： H04B1/10 ; H04B7/005 ; H04B7/08 ; H04J11/00
摘要：
PROBLEM TO BE SOLVED: To appropriately suppress interference waves in a multipath environment.SOLUTION: A multipath interference equalization filter includes: a first FIR filter section configured to receive any one of a plurality of received signals received by a plurality of antennas as a reference signal and provided in correspondence with each received signal other than the reference signal; a first subtracter provided in correspondence with each received signal other than the reference signal and configured to subtract the output of the first FIR filter section corresponding to the received signal from the received signal; and a tap coefficient setting section configured to, if the received signals include only interference waves, calculate tap coefficients for each first FIR filter section which minimize the power of the signal output by each first subtracter, and zero a tap coefficient among the calculated tap coefficients which is for a tap operative on the reference signal given the same delay time as the minuend signal in the first subtracter, before assigning the tap coefficients to the first FIR filter section.
摘要（中）：
要解决的问题：适当地抑制多路径环境中的干扰波。解决方案：多路径干扰均衡滤波器包括：第一FIR滤波器部分，被配置为接收由多个天线接收的多个接收信号中的任何一个作为参考信号 并且与除了参考信号之外的每个接收信号相对应地提供; 与所述参考信号以外的每个接收信号相对应地设置的第一减法器，并且被配置为从所接收的信号中减去与所述接收信号相对应的所述第一FIR滤波器部分的输出; 以及抽头系数设定部，其被配置为如果所接收的信号仅包括干扰波，则计算使每个第一减法器输出的信号的功率最小化的每个第一FIR滤波器部分的抽头系数，并且计算抽头系数中的抽头系数为零 在将抽头系数分配给第一FIR滤波器部分之前，其用于在给定与第一减法器中的减号信号相同的延迟时间的参考信号上操作的抽头。