The Nonlinearities of Memoryless Power Amplifier and Model of Predistorter

Huan Yang; Yuan Zhi He

doi:10.4028/www.scientific.net/AMR.981.40

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 981The Nonlinearities of Memoryless Power Amplifier...

The Nonlinearities of Memoryless Power Amplifier and Model of Predistorter

Abstract:

By analyzing the input and output data of memoryless power amplifier (PA), we construct the polynomial model and study the nonlinearities characteristics of it. Based on that the mathematic model of predistorter is gained, Least-square (LS) and adaptive LMS are used respectively to solve the question. Simulation results demonstrate predistortion can effectively correct the nonlinearities and both LS and LMS work well depending on different conditions.

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Periodical:

Advanced Materials Research (Volume 981)

Pages:

40-45

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.981.40

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Online since:

July 2014

Authors:

Huan Yang*, Yuan Zhi He

Keywords:

Adaptive LMS, LS, Nonlinearities, Power Amplifier, Predistortion

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