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We investigated a velocity analysis algorithm for the new array Ground Penetrating Radar (GPR) system “Yakumo”. The common mid-point (CMP) data, which is used to estimate the vertical profile of subsurface velocity can be acquired easily with this system. However, each CMP data set acquired by Yakumo includes only 8 GPR traces with more than 20 cm trace interval. In order to estimate the velocity...
Northeast Japan was attacked by the great earthquake and Tsunami on the 11th March 2011. We have developed an array GPR system “Yakumo” in order to use it for the recovery from the damages by Tsunami. “Yakumo” is equipped with 8-channel transmitter and receiver, and has 2m width. It can acquire GPR data rapidly, and has been used for GPR survey in large areas. One of the important applications is...
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