Digitally controlled RF predistortion with digital predictor for feedforward delay compensation

In this paper the adverse effect of lookup table indexing delay on the correction ability of a RF-predistorter is discussed and different digital methods to alleviate this are presented. For what we know the first implementation of a FIR predictor based feedforward delay compensated digital predisto...

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Hauptverfasser: Teikari, I., Vankka, J., Halonen, K.
Format: Tagungsbericht
Sprache:eng
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Zusammenfassung:In this paper the adverse effect of lookup table indexing delay on the correction ability of a RF-predistorter is discussed and different digital methods to alleviate this are presented. For what we know the first implementation of a FIR predictor based feedforward delay compensated digital predistorter is presented and measured. The measurements show that the prediction improved the ACP by nearly 10 dB.
ISSN:0149-645X
2576-7216
DOI:10.1109/MWSYM.2005.1517147