发明名称 |
RECEIVER EMPLOYING CORRELATION TECHNIQUE FOR CANCELING CROSS-TALK BETWEEN IN-PHASE AND QUADRATURE CHANNELS PRIOR TO DECODING |
摘要 |
A receiver suitable for use in a radio-telephone system for recovering data from encoded, quadrature-modulated communication signals employs a feedback arrangement for suppressing cross-talk between the receiver's in-phase and quadrature channels to improve data recovery rates during decoding. The receiver converts in-coming analog communication signals into in-phase and quadrature digital signals, which may have cross-talk components. The receiver has an attenuator for subtracting feedback signals from the in-phase and quadrature digital signals to produce cross-talk-attenuated in-phase and quadrature digital signals, a decoder for decoding the cross-talk-attenuated in-phase and quadrature digital signals to generate first and second data output signals, and the above-mentioned feedback arrangement, which preferably employs a recoder and cross-correlation techniques, for generating the feedback signals.
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申请公布号 |
CA2063663(A1) |
申请公布日期 |
1992.09.22 |
申请号 |
CA19922063663 |
申请日期 |
1992.03.20 |
申请人 |
NOVATEL COMMUNICATIONS LTD. |
发明人 |
ROBERTS, GLYN;ANVARI, KIOMARS |
分类号 |
H04L27/233;(IPC1-7):H04B1/10 |
主分类号 |
H04L27/233 |
代理机构 |
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主权项 |
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地址 |
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