Invention Grant
- Patent Title: Closed-loop receiver feedback pre-distortion
- Patent Title (中): 闭环接收机反馈预失真
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Application No.: US11549074Application Date: 2006-10-12
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Publication No.: US08385391B2Publication Date: 2013-02-26
- Inventor: Rama Balasubramanian , Mark J. Miller , Charles N. Pateros
- Applicant: Rama Balasubramanian , Mark J. Miller , Charles N. Pateros
- Applicant Address: US CA Carlsbad
- Assignee: ViaSat, Inc.
- Current Assignee: ViaSat, Inc.
- Current Assignee Address: US CA Carlsbad
- Agency: Kilpatrick Townsend & Stockton LLP
- Main IPC: H04B1/38
- IPC: H04B1/38 ; H04L5/16

Abstract:
Methods and systems for calculating pre-distortion coefficients in a closed-loop communication system are presented. Transmission terminals that include high power amplifiers are difficult to operate at or near the saturation point without transmitting signals with nonlinear distortions. By pre-distorting the signal prior to amplification the transmitted nonlinear distortions may be decreased. A closed-looped pre-distortion system may include a receiver that calculates the pre-distortion coefficients and transmits these coefficients back to the transmitter. These coefficients may be stored in a pre-distortion coefficient lookup table and may be updated by the receiver terminal.
Public/Granted literature
- US20070153884A1 CLOSED-LOOP RECEIVER FEEDBACK PRE-DISTORTION Public/Granted day:2007-07-05
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