05867065 is referenced by 114 patents and cites 4 patents.

A system for linearly transmitting an amplified output signal using predistortion is disclosed. The system uses a straight inverse modeling scheme to more easily and accurately determine the inverse of the distortion caused by a power amplifier of a RF transmitter. The direct inverse modeling scheme of the present invention indexes the LUT using the modulated input signals instead of the potentially noisier output signals, which helps to increase the accuracy of the predistortion. The predistorter system stores complex coefficients in the LUT, which are then used as the tap weights of a digital filter implementing the predistorter. Finally, the trainer uses a modified version of the power amplifier output signal. The modified power amplifier output signal has the in-band distortion removed from the power amplifier output signal.

Title
Frequency selective predistortion in a linear transmitter
Application Number
8/852390
Publication Number
5867065
Application Date
May 7, 1997
Publication Date
February 2, 1999
Inventor
Robert Richard Leyendecker
Blaine
WA, US
Agent
Christensen O Connor Johnson & Kindness PLLC
Assignee
Glenayre Electronics
NC, US
IPC
H03F 1/26
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