Invention Grant
US08670501B2 Digital pre-distortion of non-linear systems with reduced bandwidth feedback
有权
具有减少的带宽反馈的非线性系统的数字预失真
- Patent Title: Digital pre-distortion of non-linear systems with reduced bandwidth feedback
- Patent Title (中): 具有减少的带宽反馈的非线性系统的数字预失真
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Application No.: US12962369Application Date: 2010-12-07
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Publication No.: US08670501B2Publication Date: 2014-03-11
- Inventor: Fernando A. Mujica , Lei Ding
- Applicant: Fernando A. Mujica , Lei Ding
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Steven A. Shaw; Wade James Brady, III; Frederick J. Telecky, Jr.
- Main IPC: H04K1/02
- IPC: H04K1/02 ; H04L25/03 ; H04L25/49
Abstract:
Embodiments of the invention provide a DPD system where the transmit reference signal is transformed, including sub-sampling, frequency translation, and the like, to match the feedback signal, which goes thru a similar transformation process, to obtain an error signal. The same transformation is applied to a system model, which may be Jacobian, Hessian, Gradient, or the like, in an adaptation algorithm to minimize error.
Public/Granted literature
- US20110135034A1 Digital Pre-Distortion of Non-Linear Systems with Reduced Bandwidth Feedback Public/Granted day:2011-06-09
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