发明授权
- 专利标题： Receiver and method of estimating frequency response of transmission path by receiver
- 专利标题（中）： 接收机估计传输路径频率响应的接收机和方法
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申请号： US14418591申请日： 2013-06-05
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公开(公告)号： US09203656B2公开(公告)日： 2015-12-01
- 发明人: Masatsugu Higashinaka
- 申请人： MITSUBISHI ELECTRIC CORPORATION
- 申请人地址： JP Chiyoda-ku
- 专利权人： Mitsubishi Electric Corporation
- 当前专利权人： Mitsubishi Electric Corporation
- 当前专利权人地址： JP Chiyoda-ku
- 代理机构： Oblon, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2012-175539 20120808
- 国际申请： PCT/JP2013/003518 WO 20130605
- 国际公布： WO2014/024369 WO 20140213
- 主分类号： H03D1/04
- IPC分类号： H03D1/04 ; H04L25/02 ; H04J11/00 ; H04L27/01 ; H04L5/00 ; H04L27/26
摘要：
A receiver that estimates a frequency response of a transmission path using a first pilot signal stored in advance and a second pilot signal received, the receiver includes an electric power information calculation means that calculates electric power information of the first pilot signal for each subcarrier, a coefficient calculation means that calculates a coefficient on the basis of comparison between the electric power information and a predetermined threshold, a multiplication means that multiplies the electric power information of the first pilot signal for each subcarrier by a corresponding coefficient calculated by the coefficient calculation means, a transmission path estimation means that calculates an estimation value of a frequency response of a transmission path on the basis of the first pilot signal multiplied in the multiplication means and the second pilot signal received from a transmitter, and an interpolation processing means that performs interpolation processing for the calculated estimation value.
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