Telemetering acoustic method for determining the relative positi

Details Telemetering acoustic method for determining the relative positi Telemetering acoustic method for determining the relative positi

1983-01-05

1985-12-17

Farley, Richard A.

Communications, electrical: acoustic wave systems and devices

Distance or direction finding

With towing

367 19, 367106, 367117, G01S 380, G01V 138

Patent

active

045596212

ABSTRACT:
The position of a submerged object towed at great depth from a ship is determined, with respect to the ship, from measured values of the travel time of acoustic pulses between the ship and the object. These pulses are emitted at different locations of the ship and received at a point of the object. The values of the travel times of the pulses are measured and digitized on the object and transmitted by cable to the ship where they are processed, in combination with values representing the distances between the emission locations, to determine the coordinates of the object with respect to a system of axes associated with the ship.

REFERENCES:
patent: 3831136 (1974-08-01), Sagoci
patent: 3953827 (1976-04-01), Le Moal et al.
patent: 4037189 (1977-07-01), Bell et al.
patent: 4087780 (1978-05-01), Itira et al.
patent: 4187492 (1980-02-01), Deligniers

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