Special military narrow beam acoustic projectors and transmission techniques can be easily adapted for commercial use to enable fishermen or researchers to detect, locate, and quantify biological targets with very high accuracy in shallow water. The proposed effort will provide a method for producing very narrow acoustic beams with virtually no side lobes from a small aperture projector array. Also due to the wide bandwidth capability inherent in the proposed design, fish classification based upon bladder size can be readily accomplished.Commercial application:Any underwater application requiring a narrow acoustic beam without side lobes from a small projector array will benefit from this research. Other applications include underwater communications, control of underwater vehicles, and swimmer intruder detection.
