Acoustic transmission system

Details Acoustic transmission system Acoustic transmission system

1979-08-13

1981-06-30

Farley, Richard A.

Communications, electrical: acoustic wave systems and devices

Underwater system

Telemetering

367132, 455 40, 455 63, 455306, H04B 1100

Patent

active

042766249

ABSTRACT:
An acoustic transmission system for a gaseous or liquid transmission medium, in which the transmitting apparatus double-sideband amplitude modulates a carrier with the signal to be transmitted, the double-sideband amplitude modulated carrier is radiated acoustically over the transmission medium, and the receiving apparatus receives the modulated carrier plus noise introduced in the medium, rejects the superimposed noise by sampling and reconstruction means, and delivers the modulated carrier substantially free from superimposed noise.

REFERENCES:
patent: 2116814 (1938-05-01), Wilbur
patent: 3218607 (1965-11-01), Brock et al.
patent: 4178553 (1979-12-01), Fisher et al.
P. F. Panter, "Modulation, Noise and Spectral Analysis, " McGraw-Hill, 1965, pp. 506-547.
Marcus, "Sourcebook of Electronic Circuits, " New York, 1968, pp. 278 and 529.
S. Prigozy, "Electronics, " Apr. 19, 1965, p. 91.

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