Adaptation of stepped frequency continuous waveform to range-Doppler algorithm for SAR signal processing
| Autor: | Caner Ozdemir, Hakan Isiker |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Synthetic aperture radar
Signal processing Computer science Applied Mathematics 020206 networking & telecommunications 02 engineering and technology Azimuth symbols.namesake Computational Theory and Mathematics Artificial Intelligence Side lobe Signal Processing 0202 electrical engineering electronic engineering information engineering symbols Range (statistics) Waveform 020201 artificial intelligence & image processing Computer Vision and Pattern Recognition Electrical and Electronic Engineering Statistics Probability and Uncertainty Algorithm Doppler effect Impulse response |
| Zdroj: | Digital Signal Processing. 106:102826 |
| ISSN: | 1051-2004 |
| DOI: | 10.1016/j.dsp.2020.102826 |
| Popis: | In this paper, a novel and complete derivation of the range doppler algorithm (RDA) formulation is developed for stepped frequency continuous wave (SFCW) synthetic aperture radar (SAR) usage. As the RDA has been originally developed for linear frequency modulated (LFM) pulse excited SAR data, the detailed mathematical derivation of SFCW based RDA formulation is presented with similarities, differences and additions to the traditional LFM-RDA formulation for comparison. Then, the developed SFCW-RDA was tested with simulation data and the performance of the algorithm is determined by examining some important parameters including impulse response width, peak to sidelobe ratio, integrated side lobe ratio, range resolution, and azimuth resolution. The performance metrics of the SFCW-RDA in comparison to LFM-RDA thru the constructed SAR images have proven the implementation validity of the proposed technique. |
| Databáze: | OpenAIRE |
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