PSK pulse synthesizer

Details PSK pulse synthesizer PSK pulse synthesizer

1978-04-26

1979-12-25

Farley, Richard A.

Communications, electrical: acoustic wave systems and devices

Transmitter systems

325116, 325145, 367134, H04B 102, H04B 1100

Patent

active

041807936

ABSTRACT:
A phase shift keyed (PSK) pulse synthesizer which is part of an acoustic transmitter located in an underwater vehicle to provide identification and tracking of the vehicle as well as telemetry data when used on an instrumented underwater tracking range. The synthesizer is synchronized with the range time standard and generates phase coded pulses in a format suitable for input to an amplifier. A timing circuit divides a high frequency clock to produce square wave outputs at the desired frequency. A programmed read only memory (PROM) contains the identification code and is addressed from the timing circuit. A phase shift modulator combines the desired frequency with signals from the PROM and from a telemetry data generator to provide the amplifier with a digital analog of the desired acoustic message to be transmitted.

REFERENCES:
patent: 3205475 (1965-09-01), Foss
patent: 3444510 (1969-05-01), Tyndale et al.
patent: 3914695 (1975-10-01), Giusto
patent: 3958191 (1976-05-01), Jones, Jr.
patent: 3992692 (1976-11-01), Filer
"Diver Telemetry System", Sperry Eng. Rev., vol. 19, No. 3, 1966, pp. 25- 0.

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