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NICT developed the airborne X-band SAR system (Pi-SAR2) in 2008. It has polarimetric and interferometric functions with high spatial resolution of 0.3m. We demonstrated volcano monitoring using DEM generated by single-pass interferometry function of Pi-SAR2. In this paper we describe coherent change detection by repeat-pass interferometry function of Pi-SAR2. We improved the repeatability of flight...
An X-band airborne SAR, Pi-SAR2, has been developed by NICT. It can make polarimetric and interferometric observation with very high spatial resolution of 0.3m. Since 2013, NICT has carried out collaborating observations on research proposals selected for the Pi-SAR2 Research Announcement. Polarimetric SAR data analysis is a key issue among them, therefore we have made polarimetric calibration in...
This paper addresses the evaluation of the digital elevation model (DEM) generated by single pass SAR interferometry using an X-band airborne SAR (Pi-SAR2). In this paper we describe the evaluation experiments by using corner reflectors and show the result of the height accuracy on DEM by the cross-track interferometric function of Pi-SAR2.
This paper addresses the generation of the digital elevation model (DEM) by radar interferometry using an airborne SAR data observed from different directions. We demonstrate monitoring an active volcano (Mt. Shinmoe, Japan) by radar interferometry of Pi-SAR2. We improved the part of shadow on DEM by using SAR data observed from four different directions. Furthermore we detected the change of ground...
The great east Japan damaged the east coast of Japan severely. NICT conducted urgent observations of the damaged areas by an airborne X-band SAR system (Pi-SAR2: polarimetric and interferometric SAR 2). In this paper we describe the detection of the damaged area by the earthquake and tsunami with polarimetric SAR data of Pi-SAR2. The space resolution of Pi-SAR2 is 0.3 m (slant-range) [1][2]. These...
The National Institute of Information and Communications Technology (NICT) developed an airborne X-band SAR system (Pi-SAR2: polarimetric and interferometric SAR 2) to monitor the earth's environment and disasters [1]. Pi-SAR2 has polarimetric and interferometric functions with high spatial resolution of 0.3m [2]. In this paper we describe the single-pass interferometric function of Pi-SAR2 and show...
The synthetic aperture radar (SAR) has been utilized for monitoring natural disaster areas because the SAR observation can be performed irrespective of the daylight and weather conditions. To reduce the time from observation to distributing SAR images to the headquarters for disaster control and disaster area, we have developed an onboard processor which is capable of doing a full-spec processing...
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