Emulation of a Sar Interferogram from the Past Satellites for the Present Events

In this paper, we report the emulation of a line-of-sight displacement observed from the past SAR satellite. Recent SAR satellites can observe the same place from multiple tracks and estimate the ground displacement three-dimensionally from interferograms. We re-project the estimated displacement to the line-of-sight displacement observed from the past SAR satellite in order to compare the current and past ground events directly without external data and models. We present the experimental results to show the applicability of the proposal.