Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding
Patent
1979-12-21
1981-03-31
Farley, Richard A.
Communications, electrical: acoustic wave systems and devices
Echo systems
Distance or direction finding
367108, G01S 1508
Patent
active
042597340
ABSTRACT:
A system for measuring the depth of the ocean, or other body of water, from a moving vessel uses acoustical sounding from the vessel and enables improved bottom definition during high-speed vessel travel. A succession of pulses of different tone frequencies is transmitted from the vessel. The echoes produced when these tone pulses reflect from the water bottom are received at the vessel and are sorted according to frequency. This arrangement assures that the determination of the transit time of a pulse at one frequency is not confused by receipt of an echo at another frequency. The transit times of the several pulses and their echoes are measured for use in determining water depth.
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Endo Western Literature, "Model 4041 Stabilized Narrow beam Bathymetric System," 4 sheets.
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Dosse W. G.
Farley Richard A.
McBurnett R. D.
Western Electric Company Inc.
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