Abstract
SAR (Synthetic Aperture Radar) is active microwave sensor with high spatial resolution which can observe the earth all weather condition and during day and night and is used in various fields of applications. NASDA has contributed to various experiments using SAR. In 1983, SAR-580 experiment in Japan was conducted by NASDA in collaboration with CCRS and Japanese research organizations. NASDA and MITI prepared and conducted JERS-1 verification program with selected domestic and foreign principal investigators. NASDA is conducting research on future SAR mounted on ALOS (Advanced Land Observing Satellite) which will be launched around 2000. In this paper, features and applications of SAR data are presented and key technologies of SAR are presented.
