Optical SAR data processing configuration with simultaneous azimuth and range matching filtering
文献类型：期刊论文
| 作者 | D. Wang,R. OuYang,K. Z. Wang,T. J. Fu,L. X. Jin,G. L. Bi and X. X. Zhang |
| 刊名 | Applied Optics
 |
| 出版日期 | 2020 |
| 卷号 | 59期号:33页码:10441-10450 |
| ISSN号 | 1559-128X |
| DOI | 10.1364/ao.409825 |
| 英文摘要 | The real-time processing of synthetic aperture radar (SAR) data has a high requirement for the processor, which is a difficult problem in SAR real-time processing. With the rapid development of optoelectronic devices, traditional electrical SAR data processing can be converted into optoelectronic processing to improve the processing speed. In this paper, a new type of optical device is proposed to improve the processing speed of SAR data. With the help of a spatial light modulator (SLM), the initial SAR signal and matched filter function are loaded on the input plane and spectrum plane of the 4f system, respectively. Using an optical lens with the function of the Fourier transform, the Fourier transform and inverse Fourier transform of the SAR signal are carried out to realize the fast imaging of SAR. In theory, the processing speed of SAR data is the speed of light. Compared with traditional methods such as the range-Doppler (RD) algorithm, it is no longer necessary to carry out a one-dimensional Fourier transform but to carry out matching filtering for the azimuth and range of the spectrum plane of 4f system at the same time. In this way, it is not necessary to introduce a cylindrical lens, only a spherical lens is needed to realize the Fourier transform imaging of SAR. Finally, a two-dimensional SAR processing optical system is built to obtain the SAR image in real time. (C) 2020 Optical Society of America |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/64752]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | D. Wang,R. OuYang,K. Z. Wang,T. J. Fu,L. X. Jin,G. L. Bi and X. X. Zhang. Optical SAR data processing configuration with simultaneous azimuth and range matching filtering[J]. Applied Optics,2020,59(33):10441-10450. |
| APA | D. Wang,R. OuYang,K. Z. Wang,T. J. Fu,L. X. Jin,G. L. Bi and X. X. Zhang.(2020).Optical SAR data processing configuration with simultaneous azimuth and range matching filtering.Applied Optics,59(33),10441-10450. |
| MLA | D. Wang,R. OuYang,K. Z. Wang,T. J. Fu,L. X. Jin,G. L. Bi and X. X. Zhang."Optical SAR data processing configuration with simultaneous azimuth and range matching filtering".Applied Optics 59.33(2020):10441-10450. |
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