卫星通信双循环下Volterra滤波预失真算法

doi:10.3969/j.issn.1001-2400.2015.03.019

Abstract

Abstract:

Aimed at the non-linear output signal of the satellite carryon amplifier, a simplified predistortion algorithm is proposed. The algorithm is implemented by two one-order truncated Volterra filter models to construct the forward and feedback loop, and we adjust the predistortion coefficients with this dual loop to linear the output of the satellite transmitted signal. With this simplied predistortion algorithm, the predistortion coefficients updating speed and accuracy could be increased, and the linear characteristic for the signal transmitted by the satellite is well guaranteed.

Key words: satellite communication, predistortion, Volterra filter, dual loop feedback

CLC Number:

TP91

TANG Chengkai;LIAN Baowang;ZHANG Lingling. Dual loop Volterra filter predistortion in satellite communication[J].J4, 2015, 42(3): 109-114.

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Dual loop Volterra filter predistortion in satellite communication

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