Underwater multi-beam sounding system and method
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SOUTH CHINA UNIV OF TECH
- Publication Date
- 2010-10-06
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention relates to the technical field of underwater acoustic detection, in particular to an underwater multi-beam detection system and method. Background technique
[0002] Since the American scientist Fessenden manufactured the first echo sounder in the early 20th century, underwater acoustic echo sounding has gradually become the main method for measuring underwater topography. The traditional echo sounding method is consistent with the traditional ultrasonic ranging principle. First, the sending transducer emits sound waves vertically downward. The sound waves reach the bottom of the water and are reflected, and then the reflected echo reaches the receiving transducer to be received. According to the estimated delay τ of the echo obtained relative to the emitted sound wave, and the transmission speed of the sound wave in the water υ (known), the water depth is obtained Therefore, the focus of ultrasonic ranging and sounding is to estimate t...