Moving Target Refocusing Algorithm for Synthetic Aperture Radar Images
| Document type: | Conference Papers |
|---|---|
| Peer reviewed: | Yes |
| Author(s): | Thomas Sjögren, Viet Thuy Vu, Mats Pettersson |
| Title: | Moving Target Refocusing Algorithm for Synthetic Aperture Radar Images |
| Translated title: | Återfokuseringsalgoritm för rörliga mål i syntetisk aperturradarbilder |
| Conference name: | IEEE IGARSS |
| Year: | 2010 |
| Pagination: | 1-4 |
| ISBN: | 978-1-4244-9566-5 |
| Publisher: | IEEE |
| City: | Honolulu |
| URI/DOI: | 10.1109/IGARSS.2010.5654468 |
| ISI number: | 000287933804067 |
| Organization: | Blekinge Institute of Technology |
| Department: | School of Engineering - Dept. of Electrical Engineering (Sektionen för ingenjörsvetenskap - Avd. för elektroteknik) School of Engineering S-371 79 Karlskrona +46 455 38 50 00 http://www.bth.se/ing/ |
| Authors e-mail: | tsj@bth.se |
| Language: | English |
| Abstract: | In the area of SAR imaging, it is of interest to be able to focus moving targets. In this paper, an algorithm for moving target focusing is presented. The algorithm is able to refocus a smeared moving target in a SAR image processed at one relative speed to the correct one.. The algorithm works in the frequency domain and is based on the Range Migration algorithm. The refocusing can be made on the whole SAR image or small sub images corresponding to physical areas of interest for the end user. By applying the algorithm to a small image, the computational cost is greatly reduced compared with using the full SAR image. The performance is illustrated by applying the algorithm to simulated SAR data according to the parameters for the LORA system. |
| Subject: | Signal Processing\Radar and Sonar Signal Processing\General |
| Keywords: | Synthetic Aperture Radar, SAR processing, algorithm, moving targets, GMTI |
