| Paper: | SPTM-L8.4 | ||
| Session: | Time-Frequency Distributions and Radar | ||
| Time: | Friday, May 19, 11:00 - 11:20 | ||
| Presentation: | Lecture | ||
| Topic: | Signal Processing Theory and Methods: Non-stationary Signals and Time-Frequency Analysis | ||
| Title: | SAR Images Improvements by Using the S-Method | ||
| Authors: | Vesna Popovic, Milos Dakovic, University of Montenegro, Yugoslavia; Thayananthan Thayaparan, Defence Research and Development Canada, Canada; LJubisa Stankovic, University of Montenegro, Yugoslavia | ||
| Abstract: | Synthetic aperture radar processors are generally made with the stationary targets in mind, hence commonly used technique for the SAR signal analysis is a two-dimensional Fourier transform. Moving targets induce Doppler-shift and Doppler spread in the returned signal, producing blurred or smeared images. Standard techniques for these kinds of the problems are motion compensation and time-frequency analysis application. Both of them are computationally intensive. Here, we will present a numerically simple S-method based approach, already applied in the ISAR imaging. This approach improves readability of the SAR images what will be analytically proved and demonstrated on the simulated SAR setup. | ||
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