A crosscorrelation predistorter using memory polynomials

Kokkeler, Andre B.J. (2004) A crosscorrelation predistorter using memory polynomials. In: International Symposium on Circuits and Systems, ISCAS 2004, May 23-26, 2004, Vancouver, Canada.

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Abstract:	Amplification of signals with fluctuating envelopes inevitably leads to distortion because of nonlinear behavior of the power amplifier (PA). Digital predistortion can counteract these nonlinear effects. In this paper, a digital predistortion architecture is presented which is based on the calculation of correlation functions using coarsely quantized signals. The crosscorrelation functions are transformed to the frequency domain and the spectra are used to calculate the coefficients of the predistorter memory polynomial. This method has reduced complexity and slightly improved average performance in comparison with existing schemes.
Item Type:	Conference or Workshop Item
Copyright:	© 2004 IEEE
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Computer Architecture for Embedded Systems (CAES)
Link to this item:	http://purl.utwente.nl/publications/49360
Official URL:	http://dx.doi.org/10.1109/ISCAS.2004.1328754
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