Signal correction techniques

Errors present in the output of an amplifier ( 10 ) are compared with the amplifier input in a control unit ( 24 ) to derive corrected coefficients for a look-up table used by predistorter ( 12 ) to eliminate distortion in the output of the amplifier ( 10 ). Depending on the format of the predistort...

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Bibliographische Detailangaben
Hauptverfasser: BENNETT RICHARD MICHAEL, MEADE STEVEN ANTHONY, SMITHSON ANTONY JAMES
Format: Patent
Sprache:eng
Schlagworte:
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Zusammenfassung:Errors present in the output of an amplifier ( 10 ) are compared with the amplifier input in a control unit ( 24 ) to derive corrected coefficients for a look-up table used by predistorter ( 12 ) to eliminate distortion in the output of the amplifier ( 10 ). Depending on the format of the predistorter ( 12 ), at least some of the coefficients are corrected using measured errors that have been rendered independent of the input signal's amplitude.