Transmitter for angle-modulated signals

Details Transmitter for angle-modulated signals Transmitter for angle-modulated signals

1982-03-11

1984-10-16

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

332 9R, 332 18, 375 62, H03K 2549

Patent

active

044779160

ABSTRACT:
Transmitter for angle-modulated signals having an input for binary signals, a premodulation filter and a frequency modulation arrangement.
In order to improve the error rate of the system of transmitter and receiver a premodulation filter is used having a pulse response h(t): ##EQU1## wherein g(t) is the pulse response of a Gaussian low-pass filter and T the duration of a binary signal element.
The postdemodulation filter 6-4 (6-5) has a pulse response of the same general form for optimum results.

REFERENCES:
patent: 3793588 (1974-02-01), Gerwen
patent: 3890581 (1975-06-01), Stuart et al.
patent: 4003002 (1977-01-01), Snigders et al.
patent: 4041239 (1977-08-01), Haass

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