一種改進的星載合成孔徑雷達快視處理算法
A MODIFIED SPACEBORNE SAR QUICKLOOK ALGORITHM
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摘要: 該文針對合成孔徑雷達(SAR)發(fā)射線性調(diào)頻波形和多普勒歷程的特點,提出了一種改進的星載SAR快視處理算法。首先建立了算法的數(shù)學(xué)模型,給出了SAR快視圖像精確拼接的方法,最后通過對ERS-1條帶數(shù)據(jù)的快視處理,驗證了該快視算法的有效性和高效性。
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關(guān)鍵詞:
- 合成孔徑雷達; 快視處理; 線性調(diào)頻; ERS-1
Abstract: Base on the analysis of SAR linear FM waveform and Doppler history, a modified spaceborne SAR quicklook algorithm is proposed, the algorithm s mathematical model is also constructed. Then a method of how to mosaic the sub-image together is given by analyzing Doppler history. Finally, by processing ERS-1 raw data, the results indicates that the quicklook algorithm is precise and efficient. -
W.G. Carrara, Spotlight Synthetic Aperture Radar, Signal Processing Algorithm, Boston, London, Artech House, 1995, chapter 3. ［2］劉曉芹,SPOTLIGHT SAR信號處理研究,[碩士論文],北京,中國科學(xué)院電子學(xué)研究所,1999.2[2]張澄波,綜合孔徑雷達:原理、系統(tǒng)分析和應(yīng)用,北京,科學(xué)出版社,1989,第三章.[3]B.C. Mather, Fourier Domain Interpolation Techniques for Synthetic Aperture Radar: [PH.D Thesis]. University of Illinois at Urbana-Champaign, 1986. -
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