Frequency-steered acoustic beam forming system and process
Frontal sonar
Ground penetrating sonar
Ground vehicle collision prevention systems and methods
Groundwater pressure measurement
Hand held electronic grading level
Hand-held LCD fish finder
Harbor fence
Harbor fence
Heave compensation system
Height measurement method and apparatus
High data rate continuous wave towed sonar
High efficiency parametric sonar
High information rate catacoustic system
High resolution acoustic pulse-echo ranging system
High resolution bathymetric sonar system and measuring...
High resolution beam former apparatus
High resolution measuring method and apparatus
High resolution obstacle avoidance and bottom mapping array...
High resolution phase shifter beamformer for a cylindrical array