Method of operating an acoustic pulse echo ranging system

Details Method of operating an acoustic pulse echo ranging system Method of operating an acoustic pulse echo ranging system

2009-05-19

2011-10-04

Lobo, Ian (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Echo systems

Distance or direction finding

C367S908000, C073S29000R

Reexamination Certificate

active

08031557

ABSTRACT:
A method of operating an acoustic pulse echo ranging system is provided. A series of acoustic energy pulses of successively increasing or decreasing burst frequencies are transmitted through a transducer assembly. For each transmitted energy pulse associated echoes are received and converted into an echo function over time. The obtained echo function is stored in a two-dimensional pattern whose first dimension is the burst frequency and whose second dimension is the time. Based upon the two-dimensional pattern a frequency response function is evaluated as a function of echo function values over burst frequency at a selected point of time.

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