基本信息:
- 专利标题： 发送方法、发送装置、接收方法、接收装置
- 专利标题（英）：Transmitting method, receiving method, transmitting apparatus and receiving apparatus
- 申请号：CN200610095890.4 申请日：1998-06-30
- 公开(公告)号：CN1980217B 公开(公告)日：2012-06-20
- 发明人： 木村知弘 , 林健一郎 , 木曾田晃 , 曾我茂 , 影山定司 , 齐藤正典 , 石川达也 , 森仁 , 高田政幸 , 黑田彻 , 佐佐木诚
- 申请人： 松下电器产业株式会社
- 申请人地址： 日本大阪府门真市
- 专利权人： 松下电器产业株式会社
- 当前专利权人： 松下电器产业株式会社
- 当前专利权人地址： 日本大阪府门真市
- 代理机构： 中原信达知识产权代理有限责任公司
- 代理人： 钟强; 关兆辉
- 优先权： 175941/1997 1997.07.01 JP
- 分案原申请号： 98800917X 1998.06.30
- 主分类号： H04L27/26
- IPC分类号： H04L27/26 ; H04L1/04 ; H04N1/32
Received OFDM signals are transformed from a time domain into a frequency domain by Fourier transformation (12) to generate a vector sequence of each carrier wave in the frequency domain. Necessary dispersion pilot signals and termination pilot signals are extracted (13) from the vector sequence and divided (15) by a modulation complex vector to estimate transmission line characteristics relativeto the dispersion/termination pilot signals, and the transmission line characteristics are interpolated (16) to estimate transmission line characteristics relative to the information transmission carrier wave of a synchronous detection segment. The vector sequence is delayed (17) by one symbol. The interpolation output is selected (18) in the case of the synchronous detection segment, and the delay output is selected (18) in the case of a differential detection segment. The vector sequence is divided (19) by the selected output, and the result is subjected to synchronous detection or differential detection and demodulated (20) to generate digital information. Thus, high quality demodulation and demodulation suitable for mobile reception are realized.
公开/授权文献:
- CN1980217A 发送方法、接收方法、发送装置、接收装置 公开/授权日：2007-06-13