发明授权
- 专利标题： Noise variance estimation
- 专利标题（中）： 噪声方差估计
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申请号： US12022461申请日： 2008-01-30
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公开(公告)号： US08054914B2公开(公告)日： 2011-11-08
- 发明人: Deric W. Waters , Anuj Batra , Srinath Hosur
- 申请人： Deric W. Waters , Anuj Batra , Srinath Hosur
- 申请人地址： US TX Dallas
- 专利权人： Texas Instruments Incorporated
- 当前专利权人： Texas Instruments Incorporated
- 当前专利权人地址： US TX Dallas
- 代理商 Steven A. Shaw; W. James Brady; Frederick J. Telecky, Jr.
- 主分类号： H03K9/00
- IPC分类号： H03K9/00 ; H04L27/00
摘要：
A method and system for estimating noise variance. A method for noise variance estimation comprises receiving a first multi-sample symbol and receiving a second multi-sample symbol. The first multi-sample symbol is subtracted from the second multi-sample symbol to produce a set of noise samples. The set of noise samples is used to produce a noise variance estimate. The noise variance estimate is applied in various tasks (e.g. channel estimation, log-likelihood ratio computation, and/or minimum mean squared error equalization) to process data provided to a user.
公开/授权文献
- US20080181323A1 NOISE VARIANCE ESTIMATION 公开/授权日：2008-07-31
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