抄録
The coastal area is expanded with the enforcement of 200 miles limit in territorial water. So it is important to utilize the shallow water space, and to take the resource and the energy out of the territorial water. In order to execute development projects, it is necessary to survey and analyze correctly and efficiently the wide area of submarine topography and geology.
This study aims at organizing a system for discriminating the Alluvium sediments into sludge, clay, silt, sand and pebble, and finally drawing a submarine geological profile by processing the sonoprobe data as automatically as possible. The present paper describes the method of recognition by means of an acoustic reflection pattern model. The authors make a model of the sound propagation in the sea and submarine sediments, on the basis of the geological and acoustical characteristics that experts discriminate in the sonoprobe data. The method of recognition by making the acoustic reflection pattern model in a number of layers and its comparison with the actual reflected waveform is shown. Besides, sound propagation characteristics of the sea water and sediments are obtained in a water tank experiment, and its data are considered for improving the model.
