发明名称 |
Method And System For Crest Factor Reduction |
摘要 |
Methods and systems for crest factor reduction may comprise generating an original waveform to be amplified by a programmable gain amplifier (PGA); generating a distortion signal utilizing a PGA model that predicts an output signal of the PGA based on the original waveform; generating an error signal by subtracting out the original waveform from the distortion signal; filtering the generated error signal; generating a conditioned waveform with crest factor reduced from that of the original waveform by adding the filtered error signal to the original waveform; and amplifying the conditioned waveform. The crest factor of the original waveform may be reduced based on spectral mask requirements. The generating of the conditioned waveform may be iterated. The distortion signal may be generated based on a predistortion model. A signal may be fed back from an output of the PGA to the predistortion model, which may be dynamically configured. |
申请公布号 |
US2016248458(A1) |
申请公布日期 |
2016.08.25 |
申请号 |
US201615140599 |
申请日期 |
2016.04.28 |
申请人 |
Maxlinear, Inc. |
发明人 |
Sridhar Ramesh;Gallagher Timothy;Swaroop Shantha Murthy Prem;Gadam Ali Shahed Hagh |
分类号 |
H04B1/04;H03G3/30;H03F3/213;H03F1/32;H03F3/195 |
主分类号 |
H04B1/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
Carlsbad CA US |