Sonar method and system for determining and using beamform factors for forming sonar beams approximating an optimum sonar beam for the directional transmission or reception of sonar energy by a sonar phased array system. Optimum maximum and minimum dependent beamform factors are determined from initial...http://www.google.de/patents/US6366895?utm_source=gb-gplus-sharePatent US6366895 - Method and apparatus for determining and forming delayed waveforms for forming transmitting or receiving beams for a sonar system array of transmitting or receiving elements
