Invention Grant
US08654889B2 Adaptive compensation systems for mitigating distortion due to nonlinear power amplifiers
有权
用于减轻非线性功率放大器失真的自适应补偿系统
- Patent Title: Adaptive compensation systems for mitigating distortion due to nonlinear power amplifiers
- Patent Title (中): 用于减轻非线性功率放大器失真的自适应补偿系统
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Application No.: US12798026Application Date: 2010-03-26
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Publication No.: US08654889B2Publication Date: 2014-02-18
- Inventor: Rajendra Kumar
- Applicant: Rajendra Kumar
- Applicant Address: US CA El Segundo
- Assignee: The Aerospace Corporation
- Current Assignee: The Aerospace Corporation
- Current Assignee Address: US CA El Segundo
- Agency: K & L Gates LLP
- Main IPC: H04L25/49
- IPC: H04L25/49
Abstract:
A method for pre-processing a signal prior to receipt of the signal by a non-linear device (NLD) to compensate for AM-AM distortion and AM-PM distortion of the signal by the NLD. The method includes generating a modified amplitude rk based on an amplitude xk derived from a digitized envelope Ri,k of the signal, generating a scale factor ck based on the modified amplitude rk and the amplitude xk, generating an AM-AM compensated signal based on the scale factor ck, generating a first AM-PM phase compensation value based on the modified amplitude rk, and generating an AM-AM and AM-PM compensated signal by modifying a phase of the AM-AM compensated signal based on the first AM-PM phase compensation value.
Public/Granted literature
- US20110234314A1 Adaptive compensation systems for mitigating distortion due to nonlinear power amplifiers Public/Granted day:2011-09-29
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