Navigation solutions: undersea vehicles: USBL, SBL (accuracy from 0.1 m), DVL/INS (accuracy 0.3%), ground based vehicles (accuracy from 0.002%)
Hydro-acoustics: antennas, amplifiers, digital processing (Doppler equalizing, multi-paths, etc.)
- Data Compression (till 0.02 bit/pixel with photo and video data flow)