Sonar Array Receive Beamforming

The provided text discusses MATLAB-based sonar array receive beamforming, primarily focusing on horizontal plane beamforming. Sonar array technology employs multiple sensor arrays to receive acoustic signals and uses sophisticated signal processing algorithms to form beams that enhance signal strength in specific directions. In MATLAB implementation, this typically involves array geometry configuration, signal reception modeling, and beamforming algorithm application. Key MATLAB functions often include phased array toolbox components for array signal processing, direction of arrival estimation, and beam pattern synthesis. This technology finds extensive applications in sonar systems for ocean exploration, underwater communication, and target detection. Horizontal plane beamforming specifically concentrates on enhancing signal reception in the azimuth direction, significantly improving signal quality and strength through spatial filtering techniques. The implementation generally includes steps such as array element positioning, time delay calculation for beam steering, weight vector optimization, and beam pattern visualization using MATLAB's plotting capabilities.