Multipulse acoustic mapping system

Details Multipulse acoustic mapping system Multipulse acoustic mapping system

G - Physics

01

S

349/25

G01S 15/89 (2006.01)

Patent

CA 1271554

DS25-4666-2 ABSTRACT An oceanographic mapping system comprises a narrow beam acoustic transmitting transducer, a beam scanning system and controls for controlling the timing of the transmitted pulses and the movement of the bearing scanner. A receiver is also provided to receive the echoes generated by the acoustic pulses and a range calculated as provided for determining the delay between the transmitted pulses and their corresponding echoes. A mapping system is also provided which communicates with the range calculator and the beam scanner and is operable to process the range and bearing signals that generate the profile of the target area. The method of mapping includes the step of transmitting a series of acoustic signals before the first echo generated by a signal of the transmitted series is received by the receiver, thereby to increase the speed at which mapping can be accomplished.

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