发明名称 Error adjustment in direct conversion architectures
摘要 An error adjustment method of equalizing transmission characteristics of a signal processing circuitry is disclosed. In a first step, an original complex IQ signal is generated, on which error adjustment is performed. Then, the adjusted complex IQ signal is processed in the signal processing circuitry, thereby obtaining a processed real signal. The envelope of the real signal is detected and this real signal envelope and the original complex IQ signal are synchronized. The envelope of the original complex IQ signal is derived and the synchronized real signal envelope is compared with the synchronized original IQ signal envelope at two consecutive time instances. Finally, a processed complex IQ signal is obtained from the real signal envelope on the basis of the comparison result, which processed complex IQ signal is used in performing error adjustment.
申请公布号 US7627055(B2) 申请公布日期 2009.12.01
申请号 US20030408106 申请日期 2003.04.08
申请人 NOKIA CORPORATION 发明人 COERSMEIER EDMUND
分类号 H02H3/05;H04L25/03;H04L27/26;H04L27/36 主分类号 H02H3/05
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