Baseband Predistortion Lineariser Using Direct Spline Computation

Acciari, G. ; Giannini, F. ; Limiti, E. ; Rossi, M. (2002) Baseband Predistortion Lineariser Using Direct Spline Computation. In: Gallium Arsenide applications symposium. GAAS 2002, 23-27 september 2002, Milano.

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Abstract

A baseband predistorter is presented. Key features of the predistorter resides in the use of cubic splines interpolation to generate predistorted input data to the power amplifier, resulting in a reduction of computational effort with respect to traditional polynomial interpolators. Simulated behaviour of the proposed scheme is presented, demonstrating the effectiveness of the approach.

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