Various bedload measurement techniques have been developed so far and they has been examined. For example, as the indirect measurement technique with sensor, there is hydrophone. Many studies are performed about it, but various problems are pointed out. Therefore, it cannot be said that the indirect technique about bedload measurement is established. And then, we tried bedload measurement with a radar. Because we placed this study with fundamental experiment, we studied it in standing water not flowing water. We installed antennas in the water tank base. And we moved various targets and examined the signal strength change of radar. It was recognized that the radar caught flowing sand and difference of relative permittivity change from the result of the experiment. Therefore, we suggested that bedload measurement with radar was possible.

Key wordsFbedload, radar, bedload measurement, hydrophone, permittivity