Accession Number : ADD010768

Title :   Phase Demodulator Utilizing a Frequency Divider, Synchronous Filter, and Phase Comparator.

Descriptive Note : Patent,


Personal Author(s) : Gilbert,P H

Report Date : 06 Dec 1983

Pagination or Media Count : 7

Abstract : A phase demodulator for recovering the modulating wave from a phase-modulated wave. A frequency divider is provided to divide the phase-modulated wave in frequency to produce a phase-modulated subharmonic wave which is compared in a phase comparator with a signal produced by passing the phase-modulated subharmonic wave through a synchronous filter set at its carrier frequency. The filtered output of the phase comparator is proportional to the amplitude of the modulating wave. (Author)

Descriptors :   *Patents, *Demodulators, *Direction finding, *Frequency dividers, *Comparators, *Homing devices, *Electric filters, Signal processing, Phase modulation, Integrated circuits, Synchronization(Electronics), Phase locked systems, Harmonic analysis, Carrier frequencies, Complementary metal oxide semiconductors, Waves, Modulation, Output, Phase modulation, Filters, Direction finding, Gain, Radio homing, Wavefronts

Subject Categories : Electrical and Electronic Equipment
      Direction Finding

Distribution Statement : APPROVED FOR PUBLIC RELEASE