公开(公告)号：US07944996B2

公开(公告)日：2011-05-17

申请号：US12066403

申请日：2007-05-30

申请人： Yasunobu Tsukio ,  Hiroaki Ozeki ,  Sigeru Soga

发明人： Yasunobu Tsukio ,  Hiroaki Ozeki ,  Sigeru Soga

IPC分类号： H03K9/00 ,  H04L27/00

CPC分类号： H04L1/20 ,  H04B7/0802 ,  H04L25/022 ,  H04L25/0232 ,  H04L25/03159 ,  H04L27/2647

摘要： An OFDM reception device includes: a first channel estimation unit for estimating a channel distortion by using a signal that is supplied from the reception unit and has a first time interval; a second channel estimation unit for estimating a channel distortion by using a signal that is supplied from the reception unit and has a second time interval shorter than the first time interval; a selection unit for selecting and outputting one of a signal from the first channel estimation unit and a signal from the second channel estimation unit, according to a control signal from the control unit; and a correction unit for correcting a reception signal supplied from the reception unit, according to the channel estimation signal from the selection unit. The control unit determines the control signal to be supplied to the selection unit, according a reception state of the reception unit.

摘要翻译： OFDM接收装置包括：第一信道估计单元，用于通过使用从接收单元提供并具有第一时间间隔的信号来估计信道失真; 第二信道估计单元，用于通过使用从所述接收单元提供并且具有比所述第一时间间隔短的第二时间间隔的信号来估计信道失真; 选择单元，用于根据来自控制单元的控制信号选择并输出来自第一信道估计单元的信号和来自第二信道估计单元的信号中的一个; 以及校正单元，用于根据来自选择单元的信道估计信号校正从接收单元提供的接收信号。 控制单元根据接收单元的接收状态确定要提供给选择单元的控制信号。

公开(公告)号：US20090074092A1

公开(公告)日：2009-03-19

申请号：US12066403

申请日：2007-05-30

申请人： Yasunobu Tsukio ,  Hiroaki Ozeki ,  Sigeru Soga

发明人： Yasunobu Tsukio ,  Hiroaki Ozeki ,  Sigeru Soga

IPC分类号： H04L27/28 ,  H04L27/06 ,  H04L1/02

CPC分类号： H04L1/20 ,  H04B7/0802 ,  H04L25/022 ,  H04L25/0232 ,  H04L25/03159 ,  H04L27/2647

摘要： An OFDM reception device includes: a first channel estimation unit for estimating a channel distortion by using a signal that is supplied from the reception unit and has a first time interval; a second channel estimation unit for estimating a channel distortion by using a signal that is supplied from the reception unit and has a second time interval shorter than the first time interval; a selection unit for selecting and outputting one of a signal from the first channel estimation unit and a signal from the second channel estimation unit, according to a control signal from the control unit; and a correction unit for correcting a reception signal supplied from the reception unit, according to the channel estimation signal from the selection unit. The control unit determines the control signal to be supplied to the selection unit, according a reception state of the reception unit.

摘要翻译： OFDM接收装置包括：第一信道估计单元，用于通过使用从接收单元提供并具有第一时间间隔的信号来估计信道失真; 第二信道估计单元，用于通过使用从所述接收单元提供并且具有比所述第一时间间隔短的第二时间间隔的信号来估计信道失真; 选择单元，用于根据来自控制单元的控制信号选择并输出来自第一信道估计单元的信号和来自第二信道估计单元的信号中的一个; 以及校正单元，用于根据来自选择单元的信道估计信号校正从接收单元提供的接收信号。 控制单元根据接收单元的接收状态确定要提供给选择单元的控制信号。