REVIEW OF NUMERICAL-METHODS FOR PREDICTING SONAR ARRAY PERFORMANCE

Sonar systems are becoming increasingly more elaborate and complicated as greater sensitivity and noise rejection are demanded. Consequently modern sonars are expensive and difficult to construct. This is parti cularly so for the actual acoustic array. The importance of providing accurate performance prediction is obvious, The review considers numer ical schemes for this task and assess their suitability for specific a pplications. Particular attention to finite-element and boundary-eleme nt methods is made. Methods suitable for active and passive arrays are considered. Possible potential improvements in accuracy and computati onal effort are discussed.