Introduction to Sonar

Course details This course covers the following content: Introduction History of sonar Active and passive sonar The sonar environment Acoustic waves Wave motion Doppler effect Understanding and manipulating decibels Simple spreading loss Wave synthesis and analysis Transducers and arrays Piezo-electric materials Hydrophones Transducer types Beamforming, shading and steering Noise and reverberation Noise sources and spectra Self and ambient noise Reverberation Acoustic propagation Absorption Sound velocity profile Effect of boundaries Refraction and ray diagrams Signal processing and displays Processing systems for broadband passive, narrowband passive and active sonars Format of operational sonar displays Passive ranging The sonar equation Sonar parameters Target strength Active Sonar equation Passive Sonar equation Sonar system design How requirements and platforms influence sonar design Military sonar system design including ASW, weapon and mine hunting sonars Commercial sonar design including survey, fish finding and AUV sonars