CCD Signal processor
Channel formation system for panoramic sonars
Circuit arrangement for the formation and processing of group si
Controlling the directivity of a circular array of acoustic sens
Data-based signal definition for frequency domain adaptive...
Delay quantization technique to reduce steering errors in digita
Delay scheme and apparatus for focussing the transmission and re
Detection system
Device for and a method of determining the angle of...
Digital device for the formation of sonar channels
Digital time-delay beamformer for sonar systems
Digital ultrasound beamformer
Dual-frequency receiving array using randomized element position
Electrically steerable sonar system
Electrically steerable spherical hydrophone array
Element-sited beamformer
Expendable virtual vertical sensing array
Formation of sonar channels by charge-coupled devices
General fluctuation sensitive filter
Homing device for underwater divers