Compact and High-Performance SAR on Autonomous Aircraft

Important results from the project

The scope for this project has been to develop new and improved models and solutions applicable for 1. Multi-aperture concept for SAR 2. Autofocus for high-resolution SAR on radar bands at microwave frequencies 3. New methods for efficient reconstruction and focusing of SAR data For the first mentioned point, a new model for better dimensioning of minimal radar antennas has been developed. In the last two points, the new methods have been tested and evaluated on SAR data from several types of SAR systems. This means that the scope of the project is judged to be well fulfilled.

Expected long term effects

Expected effects of the project have been new models and solutions for independent SAR systems. These effects have also led to two other important results. In addition to strengthening and developing competence at Saab and Chalmers University of Technology, project results have provided an opportunity to participate and build on these with other and new partners.

Approach and implementation

An overall strategy in the project has been to start from theory and basic knowledge within SAR. This has allowed that previously restrictive traditional SAR designs to become visible. This has been particularly visible in the area of multi-aperture SAR, the new method for processing GPS / GNSS data and för efficient reconstruction and focusing of SAR data (the new focus measure). Several individuals have also been able to participate in several consecutive projects, which has led to a high pace in the development of new theory, simulation and evaluation.