Sonars and underwater systems Sonars and hydrographic systems Special electronics Marine surveying and research GEOACOUSTICS SONAR SONAR SYSTEMS FOR SIDE SCAN, BATHYMETRY AND SUB-BOTTOM PROFILING SIDE-SCAN SONAR GEOSWATH 4 ECHOSOUNDER SUB-BOTTOM PROFILER – GEOPULSE COMPACT SUB-BOTTOM PROFILER – GEOPULSE