Device for demodulating PSK-FM double modulated carrier signals

Details Device for demodulating PSK-FM double modulated carrier signals Device for demodulating PSK-FM double modulated carrier signals

1979-03-14

1981-02-10

Grimm, Siegfried H.

Demodulators

Amplitude modulation demodulator

Having specific distortion, noise or other interference...

329104, 329110, 370 10, 370110, 375 86, 455210, 455216, H03D 300

Patent

active

042504562

ABSTRACT:
A demodulator for PSK-FM double modulated carrier signals in which the carrier signal is 2.sup.N phase modulated by a main signal and frequency modulated by a sub-signal. A clock component is extracted from the received double-modulated carrier signal and the carrier signal sampled in accordance therewith. The amplitude of the output of the sampling gate is limited prior to frequency multiplication by 2.sup.N. A frequency modulated component is then demodulated from the multiplied signal.

REFERENCES:
patent: 3603882 (1971-09-01), Wilson
patent: 3835404 (1974-09-01), Nakamura et al.
patent: 4110706 (1978-08-01), Matsumoto et al.

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