In underwater unmanned vehicles. complex acoustic transducer arrays are always used to transmitting sound waves to detect and position underwater targets. Two methods of obtaining low-sidelobe transmitting beampatterns for acoustic transmitting arrays of underwater vehicles are investigated. The first method is the boundary element model optimization method which used the boundary ele... https://www.soiebiologique.com/limited-price-Test-Evaluation-Command-ACU-Patch-Foliage-Green-flash-choice/