5Augustin J M, X Lurton. Image amplitude calibration and processing for seafloor mapping sonars [ C ] //Proceedings of the Oceans' 2005 Europe Conference. 1, Brest, France, 2005, 20-23 June: 698-701.
6Beaudoin J D, J E Hughes Clarke, E J V D Ameele, J V Gardner. Geometric and radiometric corrections of multibeam backscatter derived from Reson 8101 systems [ C ] //Proceedings of Canadian Hydrographic Confer- ence. Toronto, Canada, 2002, 28-31May.
7Hughes Clarke J E, L A Mayer, D E Wells. Shallow-water imaging multibeam sonars: a new tool for investigating seafloor processes in the coastal zone and on the continental shelf [J].Marine Geophysical Researches, 1996, 18.
8Hellequin L, J M Boucher, X Lurton. Processing of high-frequency muhibeam echo sounder data for seafloor characterization [ J ] . Journal of oceanic Engineering, 2003, 28(1) .
9Urick R J. Principles of underwater Sound for Engineers [R] . Mc Graw-Hill, 1967: 342.
10Francois R E, and G R Garrison. Sound absorption based on ocean measurements: part Ⅱ: Boric acid contribution and equation for total absorption [ J ] . The Journal of the Acoustical Society of America, 1982, 72(6) .