Research on Maritime Floating Buoys that can be Observed with Synthetic Aperture Radar Satellites

In the coastal fishery, it is becoming more important to measure the position of fishing gear such as set-net using SAR satellites. In this study, we studied the retroreflective structure using the Luneberg lens in order to detect the floating buoys such as fishing gear with the SAR satellite radar. A prototype of the Luneberg lens was made using 3D printers, and it was confirmed by electromagnetic field simulation analysis, and we analyzed that it has a focus on the interface with seawater and it has the property of retroreflective.