A Proposed Tactical Antisubmarine Warfare Service Utilizing Resonant Bubbles.
NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF
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An experimental investigation was made of the scattering properties of a bubble cloud in a sound field in a fresh water medium. The size of the bubbles was on the order of 0.125 cm radius, and was far above resonant size for the ensonifying sound field. It was determined that the bubbles scattered coherently in the forescatter direction, and incoherently in the backscatter direction. Based upon the scattering properties of the bubble cloud, it appears feasible to develop a device that could have tactical applications in the prosecution of long-range submarine contacts held by active sonars. Such a device would utilize the principle of resonant bubbles, and would require approximately 2.5 cubic feet of air corrected to STP to maintain a 20dB target strength for five minutes of continuous operation. Author
- Undersea and Antisubmarine Warfare
- Acoustic Detection and Detectors