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:: Volume 8, Number 3 (autumn 2017) ::
3 2017, 8(3): 275-284 Back to browse issues page
RDA Algorithm in SAR with OFDM Waveform
eng. mohammad zeighami *, Dr mohammad hasan bastani2, Dr fereidoun behnia2
Science and Research Branch of the Islamic Azad University , moh.ze57@gmail.com
2- Sharif University of Technology
Abstract:   (328 Views)

One of the modern issues in SAR processing is the use of the OFDM waveform instead of the conventional LFM signal. OFDM is a digital modulation scheme in which some orthogonal sub carriers are used simultaneously dividing the available bandwidth into several narrowband and parallel sub channels. The advantages of using OFDM waveform for synthetic Aperture radar (SAR) imaging include enhanced resistance against jamming, lower Doppler ambiguity and the possibility of extracting phase background of the target on the basis of phase estimation of the OFDM sub carriers. In this paper,  the basic relations of OFDM waveform generation was reviewed firstly, and then the form of imaging in the range and azimuth by using this signal in the form of RDA algorithm was described.   

Keywords: SAR, OFDM, RDA Algorithm
Full-Text [PDF 1273 kb]   (173 Downloads)    
Type of Study: Research | Subject: transmission
Received: 2014/05/6 | Accepted: 2017/02/26 | Published: 2017/07/10
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zeighami M, bastani M H, behnia F. RDA Algorithm in SAR with OFDM Waveform . 3. 2017; 8 (3) :275-284
URL: http://adst.ir/article-1-613-en.html
Volume 8, Number 3 (autumn 2017) Back to browse issues page
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