Wideband Adaptive Predistortion Algorithm Based on LUT and Memory-effect Compensation Techniques

Hu  Xin; Wang Gang; Wang  Zi-Cheng; Luo  Ji-Run

doi:10.3724/SP.J.1146.2011.00654

Volume 34 Issue 3

Mar. 2012

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Article Navigation > Journal of Electronics & Information Technology > 2012 > 34(3): 733-738

Cheng De-bao, Hu Feng-ming, Yang Ru-liang. Study on Target Detection of SAR Image Using Improved Fractal Feature[J]. Journal of Electronics & Information Technology, 2009, 31(1): 164-168. doi: 10.3724/SP.J.1146.2008.00416

Citation:

Hu Xin, Wang Gang, Wang Zi-Cheng, Luo Ji-Run. Wideband Adaptive Predistortion Algorithm Based on LUT and Memory-effect Compensation Techniques[J]. Journal of Electronics & Information Technology, 2012, 34(3): 733-738. doi: 10.3724/SP.J.1146.2011.00654

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Wideband Adaptive Predistortion Algorithm Based on LUT and Memory-effect Compensation Techniques

doi: 10.3724/SP.J.1146.2011.00654

Received Date: 2011-06-29
Rev Recd Date: 2011-11-15
Publish Date: 2012-03-19

Abstract

Abstract

To obtain the good performance for linearization, a digital predistortion algorithm is presented. Look-Up-Table (LUT) and memory-effect compensation techniques is combed, and the linear interpolation method is applied to the LUT. Compared to memory polynomial methods, this predistortion technique can reduce the complexity of calculation and obtain the good performance for linearization. Under power amplifiers memory polynomial model, the simulation results for Orthogonal Frequency Division Multiplexing (OFDM) wideband signal show the excellent linearization purpose for memory nonlinear power amplifier.
- Power amplifier,
- Adaptive predistortion,
- Memory-effect,
- Look-Up-Table (LUT),
- Memory polynomial

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