Development of a GB-SAR System and Perform Basic and Advance Measurements for a Fixed Target

Abstract: Ground-Based Synthetic Aperture Radar (GB-SAR) system is a new innovative monitoring technique has been invented depending on the use of ground based applications and highly repeatable measurements. GB-SAR is a new class of SAR system based on unconventional platform like ground, building and ground vehicles that acts as a useful complement of airborne and spaceborne SAR system. In this empirical thesis project, we described a first hands-on experience working with our Ground-Based Synthetic Aperture Radar (GB-SAR). A large part of this thesis has been devoted to describe image construction process by Global Backprojection (GBP) algorithm, development of a GB-SAR system and perform two different experiments. We have developed a system full of polarimetric and interferometric functionalities to perform different measurements phenomena. The system consists of a Vector Network Analyzer (ENA 5071C), one Double Ridge Guide Horn Antenna, one Low loss-high frequency cable and an Antenna Positioner. The system can be operated in a frequency range from 300 MHz to 20 GHz, allowing a scanning aperture of 1.8 meter 1.6 meter in horizontal and vertical direction respectively. Measurements has performed in a closed door environment for two different experiments related to acquired data compression in range and image formation by GBP algorithm. The experimental results showed the excellent interferometric performance as we expected from our GB-SAR system, which should perform many useful and paramount applications for further research work at Blekinge Institute of Technology (BTH, Sweden).