Crest factor reduction for use in a multiband transmitter

Details Crest factor reduction for use in a multiband transmitter Crest factor reduction for use in a multiband transmitter

2007-12-25

2007-12-25

Nguyen, Tony T. (Department: 2618)

Telecommunications

Transmitter

Power control, power supply, or bias voltage supply

C455S552100, C455S553100, C455S208000

Reexamination Certificate

active

11111600

ABSTRACT:
Crest factor reduction in a multiband transmitter is described. Component signals (xi[n]) are respectively obtained from constituent signals. The component signals (xi[n]) are respectively associated with sub-bands. A superposed signal associated with the component signals (xi[n]) is clipped to obtain a clipping noise error signal. The clipping noise error signal is applied to the component signals (xi[n]) using a least squares estimation to project clipping noise error onto the sub-bands.

REFERENCES:
patent: 7058380 (2006-06-01), Sato
patent: 2005/0164733 (2005-07-01), Sato

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