发明名称 |
Predistortion for a multicarrier transmitter |
摘要 |
<p>A phase deviation can be prevented at the time of processing carried out when a multi-carrier signal is transmitted. A multi-carrier signal is filtered in a filter (103), and thereafter subjected to fast Fourier transform to produce symbol sequence data. The amplitude and phase of a signal obtained as the symbol sequence data are corrected. As its amplitude-phase correction circuit (211), a correction value storing means for storing a value to cancel a change amount of the signal caused by an amplitude characteristic and a phase characteristic of the filtering in its pass band, and a multiplication means for multiplying an output value of the fast Fourier transform by a value stored in the correction value storing means are provided. <IMAGE></p> |
申请公布号 |
EP0825743(A2) |
申请公布日期 |
1998.02.25 |
申请号 |
EP19970306465 |
申请日期 |
1997.08.22 |
申请人 |
SONY CORPORATION |
发明人 |
SAKODA, KAZUYUKI;SUZUKI, MITSUHIRO |
分类号 |
H04L27/22;H04B7/01;H04J11/00;H04L27/26;(IPC1-7):H04L27/26 |
主分类号 |
H04L27/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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