Digital signal demodulation

Details Digital signal demodulation Digital signal demodulation

1988-06-27

1989-08-22

Mis, David

Demodulators

Amplitude modulation demodulator

Having specific distortion, noise or other interference...

329 50, H03D 300

Patent

active

048599603

ABSTRACT:
A method of demodulating a high frequency carrier signal having at least one parameter modulated by a low frequency modulating signal comprises translating the signal to a low intermediate frequency, digitizing the translated intermediate frequency signal at a correspondingly low sampling rate and applying terms from the resulting digital time series to a non-linear processor to produce an output representative of the instantaneous value of the modulated parameter. Deriving an instantaneous value of the modulated parameter removes the need to use a high intermediate frequency for the carrier and enables the signal to be sampled at a low sampling rate.

REFERENCES:
patent: 4567442 (1986-01-01), Haussmann

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