Now showing items 1-4 of 4

    • An interactive program for digitization of seabed photographs 

      Ramprasad, T.; Sharma, R. (CSIR-NISCAIR, 1989)
      A program for dignitization of seabed photographs to compute coverage and abundance of polymetallic nodules is developed. Since the objects in the seabed photograph are partially covered by thin sediment layer, the automatic ...
    • Bottom mounted seabed mooring frame for high current field 

      AshokKumar, K.; Chandramohan, P.; Pednekar, P.S.; Diwan, S.G. (National Institute of Oceanography, India, 2004)
      Longterm current measurements for a period of 14 months were taken up by National Institute of Oceanography, Goa, India at high current regime in Gulf of Khambhat. The measurement was intended at seabed for obtaining vector ...
    • Duel frequency echo data acquisition system for sea-floor classification 

      Navelkar, G.S.; Desai, R.G.P.; Chakraborty, B. (Allied, India, 2005)
      An echo data acquisition system is designed to digitize echo signal from a single beam shipboard echo-sounder for use in sea-floor classification studies using a 12 bit analog to digital (A/D) card with a maximum sampling ...
    • Seafloor backscatter signal simulation and classification 

      Mahale, V.; El Dine, W.G.; Chakraborty, B. (Allied, India, 2005)
      In this paper, simulation study is initiated to observe the interaction effect of the sound signal with different seafloors types and its classification. Simulation of the echo envelope signal is done by accurately formulating ...