Abstract     Description     Claims     Drawing  

Measurement of multibeam sonar directivity patterns   [0004] 
Method for Large Sonar Calibration and Backscattering Strength Estimation   [0005] 
Multi-Channel Transducer Calibration System at Reson.A/S Denmark   [0046] 
Method for Large Sonar Calibration and Backscattering Strength Estimation   [0046] 
Multi-Channel Transducer Calibration System at Reson A/S Denmark   [0053]