极性功函数预失真器的线性化性能

Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194) Pub Date : 1998-08-09 DOI:10.1109/RAWCON.1998.709202

C. Rey, E. Clark

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引用次数: 1

摘要

提出了一种极功函数预失真器(WFP)，它具有良好的射频放大器线性化性能和宽带性能。我们描述了一种DSP优化方案，该方案允许线性器适应并保持最佳的带外性能。我们进一步描述了一个模拟器，该模拟器准确地模拟了系统的性能，并预测了由于WFP的实现而导致的动态失真，以及一个意想不到的非线性最优解，用于am- am失真补偿。

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Linearization performance for a polar work function predistorter

We present a polar work function predistorter (WFP) which shows good RF amplifier linearization performance and wideband capability. We describe a DSP optimization scheme that allows the linearizer to adapt and maintain optimum out-of-band performance. We further describe a simulator that accurately models the performance of the system and predicts dynamic distortion due to the WFP implementation as well as an unexpected nonlinear optimum solution for the am-to-am distortion compensation.

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Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194)

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