发明名称 |
Methods, receiver devices and systems for whitening a signal disturbance in a communication signal |
摘要 |
Methods, systems and receiver devices are provided which may reduce the average power of a signal disturbance by whitening the signal disturbance. In one aspect, a finite impulse response filter (FIR) is provided which whitens the signal disturbance by filtering a downsampled received signal using filter coefficients adaptively established using known signal information in each signal burst of the received signal. Alternatively, a noise-whitening equalizer is utilized having a modified metric that whitens the signal disturbance again using coefficients adaptively established using known signal information in each signal burst of the received signal. The noise-whitening equalizer approach further allows the noise-whitening coefficients to be updated by treating symbol estimates from the equalizer as known signal information to generate updated noise-whitening coefficients. A novel receiver containing a modified Euclidean metric equalizer to provide noise-whitening is also provided.
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申请公布号 |
US6590932(B1) |
申请公布日期 |
2003.07.08 |
申请号 |
US19990450684 |
申请日期 |
1999.11.24 |
申请人 |
ERICSSON INC. |
发明人 |
HUI DENNIS;ZANGI KAMBIZ C.;RAMESH RAJARAM |
分类号 |
H04B3/06;H04B1/10;H04L25/03;(IPC1-7):H03H17/04 |
主分类号 |
H04B3/06 |
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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