发明申请
- 专利标题: RECEIVER SECOND ORDER INTERMODULATION CORRECTION SYSTEM AND METHOD
- 专利标题(中): 接收器二阶互连校正系统及方法
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申请号: US13253030申请日: 2011-10-04
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公开(公告)号: US20120027137A1公开(公告)日: 2012-02-02
- 发明人: Alyosha Molnar , Morten Damgaard , Geoff Hatcher , Kenneth Chai-en Wu
- 申请人: Alyosha Molnar , Morten Damgaard , Geoff Hatcher , Kenneth Chai-en Wu
- 主分类号: H04L25/08
- IPC分类号: H04L25/08 ; H04B1/10
摘要:
A system for correcting a second order intermodulation product in a direct conversion receiver is provided. The system includes a cross-covariance system receiving a data signal and a second order intermodulation estimate signal and generating a cross-covariance value. An auto-covariance system receives the second order intermodulation estimate signal and generates an auto covariance value. A buffer system stores a second order intermodulation product correction factor. A divider receives the cross-covariance value, the auto-covariance value and the second order intermodulation product correction factor and generates a running average second order intermodulation product correction factor.
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