Coherent signal generation in digital radio receiver

Details Coherent signal generation in digital radio receiver Coherent signal generation in digital radio receiver

1994-08-31

1995-11-14

Isen, Forester W.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Broadcast or multiplex stereo

381 15, 455312, 4552351, 331 20, 331 25, H04H 500

Patent

active

054673992

ABSTRACT:
A digital radio receiver generates coherent signals for synchronous detection without use of a phase-locked loop by employing an adaptive notch filter to cancel the desired signal. The cancelling signal is employed as the coherent signal for synchronous detection. The invention obtains faster locking to the desired signal, a wider capture range, and more efficient software coding in a digital signal processing receiver.

REFERENCES:
patent: 4887297 (1989-12-01), Loughlin
patent: 4945313 (1990-07-01), Brilka et al.
patent: 5261004 (1993-11-01), Manlove et al.
patent: 5357574 (1994-10-01), Whitecar

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