Multi-Satellite Interferometric SAR System

Abstract

In the present work a multi-satellite SAR system is considered. Between every pair of SAR satellites an interferometric concept is implemented. It allows the height of each pixel on the surface to be evaluated with high precision and a three dimensional map to be created. InSAR geometry is analytically described. Mathematical expressions for determination of current distances between SAR's and detached pixels on the ground, and principal InSAR parameters are derived. A model of linear frequency modulated (LFM) SAR signal with InSAR applications, reflected from the surface is developed. Correlation and spectral SAR image reconstruction algorithms and co-registration procedure are described. To verify the correctness of the signal model and image reconstruction and co-registration algorithm numerical experiment is carried out. 33Lazarov A., Minchev C. and Minchev D. Multi-Satellite Interferometric SAR System.

Phase Statistical Model and Correction in Imagery of Ground Based Synthetic Aperture Radar (Gbsar) for Land Deformation Monitoring

“…The working principle of the Interferometric Synthetic Aperture Radar (InSAR) covers three primary stages. In stage one, two satellite-borne SAR imaging campaigns are conducted on the same area [10]. Next, the phases in the two SAR images are compared to produce the interferogram.…”

ISAR Imaging of the Ship Target at Sea

“…The In case the minimal time delay is assigned to one and the same first point scatterer of the target during inverse aperture synthesis to achieve high quality imaging can be exploited a conventional 2-D spectral image reconstruction algorithm, described in [15].…”

“…After that the ISAR signal from the first point scatterer is located in a certain range cell, autofocusing phase correction procedure needs to performe [15]. The phase history of this signal is defined for each ) ( 0 p Φ p .…”