DPSK demodulator which may be used in an interrogator of a remot

Details DPSK demodulator which may be used in an interrogator of a remot DPSK demodulator which may be used in an interrogator of a remot

1997-07-15

1999-04-20

Mis, David

Demodulators

Phase shift keying or quadrature amplitude demodulator

375324, 375330, H03D 300, H04L 2722

Patent

active

058960600

ABSTRACT:
A differentially phase shift keyed demodulator for use in an interrogator of a remote intelligent communication system. The demodulator includes a quadrature combiner delaying one of the quadrature signals and thereafter combining the delayed and undelayed signals along with a FIR matched filter, which filters the combiner output whereby the differentially phase shift keyed data on a sub-carrier can be demodulated using a simple delay and multiplying scheme in response to the filtered output.

REFERENCES:
patent: 5311555 (1994-05-01), Ichiyoshi

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