Radar Imaging
Radar imaging is used in many areas including defense, aerospace and enviromental monitoring. Radar usually preferred when line-of-sight detection is not available or vision obscured enviroment.
TO BE EDITED
Ground-based SAR systems are commonly used for radar imaging applications such as landslide monitoring. These systems offer high resolution and easily formed using VNA which makes it
interesting for research purposes. These high-quality images offer a good foundation for sparsity analysis and advanced processing methods. In this work, we have developed a GB-SAR system for
indoor imaging applications. We use a step-frequency continuous wave radar system which consists of a commercially available network analyzer, linear rail and its control unit and the wideband
antennas which are fabricated for this project. We have also implemented a controller to handle various tasks. The system is remotely controlled via ethernet using a palm-sized computer. Data
acquisition and formation of measurement vector is realized on the palm-sized computer. More advanced processing is done on the server side which collects measured data over ethernet. We have designed a lightweight wideband ridged horn from 2 GHz to 6 GHz to be implemented in this system to increase the range resolution which is inversely proportional to the bandwidth of the system. The proposed wideband antenna also offers significant weight reduction. The experimental data is then processed with high resolution BS-MUSIC algorithm to reconstruct the target in the highly scattering indoor area.
Synthetic Aperture Radar (SAR) is one of the most commonly used radar imaging technique and is used in many of our on-going research projects.Linear rails are used to provide movement of the antennas, thou several other on-going projects use different kind of vehicles.
