FIELD: seismic prospecting. SUBSTANCE: before working examined massif is divided into cubic blocks. The height of each block face not exceed 1/2 of length of emitted wave. Emitted wave are focused in center of each block. Simultaneously the waves are cophasally added by receivers. After processing obtained data the power of wave from each center is determined. The image of local diffracted object is obtained using maximal values of the energy. EFFECT: enhanced efficiency. 2 cl, 1 dwg
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