发明名称 |
Adaptive digital beamforming receiver with pi /2 phase shift to improve signal reception |
摘要 |
There is disclosed an apparatus and method for improving signal reception in a signal receiver. The apparatus comprises a beamforming circuit and a decision feedback equalizer circuit. The beamforming circuit comprises two circuit branches with each circuit branch having a radio frequency (RF) tuner capable of being coupled to an antenna, an intermediate frequency (IF) mixer, a pi /2 phase shift circuit, and two feedforward equalizer circuits and an adder circuit. In the decision feedback equalizer circuit a decision device that is coupled to the output of said adder circuit modifies equalizer coefficients in said feedforward equalizer circuits to reduce an interfering signal by electronically forming a null in the direction of the interfering signal.
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申请公布号 |
US6115419(A) |
申请公布日期 |
2000.09.05 |
申请号 |
US19990422734 |
申请日期 |
1999.10.21 |
申请人 |
PHILIPS ELECTRONICS NORTH AMERICA CORPORATION |
发明人 |
MEEHAN, JOSEPH P. |
分类号 |
H04L27/22;H01Q3/26;H03H7/30;H04B7/005;H04B7/08;H04B10/18;H04L25/03;H04N5/44;(IPC1-7):H04B10/18 |
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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