Experimental Estimation of Measurement Precision in Radial Shifts Detection Using X-band Noise Waveform d-InSAR

Abstract

In the paper the results of experimental investigation of the X-band pulsed noise waveform (NW) synthetic aperture radar (SAR) are presented. The experiments were aimed on interferometric measurements with the help of X-band pulse noise waveform SAR with arc aperture which was designed by LNDES, IRE NASU (Kharkiv, Ukraine). The imaging scene consisted of urban territory with a number of buildings and trees. Interferometric capabilities of the system were analyzed with the help of a horn scatterer with precisely controlled position. The system enabled to resolve shapes of buildings and trees at ranges of 30-200 meters from the radar. Interferograms proved phase sensitivity of the system and enabled to detect shifts of trees branches due to wind. It was shown that radar enables to measure shifts with precision better than 0.5 mm.