本文關(guān)鍵詞：非對稱光斑照明合成孔徑激光雷達寬測繪帶成像研究，由筆耕文化傳播整理發(fā)布。

摘要

合成孔徑激光雷達（SAL）能實現(xiàn)遠距離目標的高分辨成像，但是，其測繪帶寬一般很小，不利于其在對地觀測中的應用。針對這一問題，給出了寬測繪帶SAL 實際成像范圍的建議，具體研究了采用方位向短、距離向長的非對稱光斑照明實現(xiàn)寬測繪帶SAL 的成像處理問題。采用波動光學衍射理論，給出了這種寬測繪帶SAL 的詳細成像理論描述和數(shù)學仿真成像演示。結(jié)果表明，由于光學的短波長特性，，非對稱光斑照明的寬測繪帶SAL 也近似遵循基本SAL圖像形成方法：傅里葉變換實現(xiàn)距離壓縮，匹配濾波實現(xiàn)方位圖像聚焦。

關(guān)鍵詞

Abstract

Synthetic aperture ladar (SAL) can achieve long distance objects high resolutions imaging. However, the mapping bandwidth is generally small, which probably limits its applications in land surveillance. In order to solve the problem, practical imaging range of a wide swath SAL is suggested and a wide swath SAL using non-symmetric beam-pattern illumination with short azimuth size and long range size is investigated in detail. By wave optics diffraction theory, detailed theoretical descriptions of the image formation theory on the wide swath SAL as well as the mathematical simulations are given. The results show that due to the characteristic of short optical wavelength, the conventional image formation theory used in SAL data processing is approximately applied in wide swath SAL using non- symmetric beam- pattern illumination, that is, range compression by Fourier transformation and azimuth image focusing by matched filtering.

暫無全文如何下載

補充資料

中圖分類號：TN958

DOI：10.3788/aos201535.0328003

所屬欄目：遙感與傳感器

基金項目：國家自然科學基金（61178071）

收稿日期：2014-09-24

修改稿日期：2014-11-12

網(wǎng)絡(luò)出版日期：--

作者單位    點擊查看

吳謹：中國科學院電子學研究所, 北京 100190
趙志龍：中國科學院電子學研究所, 北京 100190中國科學院大學, 北京 100049
段洪成：中國科學院電子學研究所, 北京 100190中國科學院大學, 北京 100049
吳曙東：中國科學院電子學研究所, 北京 100190中國科學院大學, 北京 100049
黃文武：中國科學院電子學研究所, 北京 100190

聯(lián)系人作者：吳謹(jwu909@263.net)

備注：吳謹（1965—），男，博士，研究員，主要從事脈沖氣體激光器及激光雷達等方面的研究。

【1】M Bashkansky, R L Lucke, E Funk, et al.. Two-dimensional synthetic aperture imaging in the optical domain [J]. Opt Lett, 2002, 27(22): 1983-1985.

【2】S M Beck, J R Buck, W F Buell, et al.. Synthetic-aperture imaging radar: Laboratory demonstration and signal processing [J]. Appl Opt, 2005，44(35)：7621-7629.

【3】J R Buck, B W Krause, A I R Malm, et al.. Synthetic aperture imaging at optical wavelengths [C]. Conference on Lasers and Electro-Optics, Optical Society of America, 2009: PThb3.

【4】J Ricklin, M Dierking, S Fuhrer, et al.. Synthetic aperture ladar for tactical imaging [J]. DARPA Strategic Technology Office, 2007.

【5】B W Krause, J Buck, C Ryan, et al.. Synthetic aperture ladar flight demonstration [C]. Applications and Technology. Optical Society of America, 2011.

【6】S Crouch, Z W Barber. Laboratory demonstrations of interferometric and spotlight synthetic aperture ladar techniques [J]. Opt Express, 2012, 20(22): 24237-24246.

【7】S Turbide, L Marchese, M Terroux, et al.. An all-optronic synthetic aperture lidar [C]. SPIE, 2012, 8542: 854213.

【8】Liu Liren. Principle of down looking synthetic aperture imaging ladar [J]. Acta Optica Sinica, 2012, 32(9): 0928002.
劉立人. 直視合成孔徑激光成像雷達原理[J]. 光學學報, 2012, 32(9): 0928002.

【9】L Liu. Coherent and incoherent synthetic-aperture imaging ladars and laboratory-space experimental demonstrations [J]. Appl Opt, 2013, 52(4): 579-599.

【10】Zhu Luan, Jianfeng Sun, Yu Zhou, et al.. Down-looking synthetic aperture imaging ladar demonstrator and its experiments over 1.2 km outdoor [J]. Chin Opt Lett, 2014, 12(11): 111101.

【11】Liu Liren, Zhou Yu, Zhi Yanan, et al.. A large aperture synthetic aperture imaging ladar demonstrator and its verification in laboratory space [J]. Acta Optica Sinica, 2011, 31(9): 0900112.
劉立人, 周煜, 職亞楠, 等. 大口徑合成孔徑激光成像雷達演示樣機及其實驗驗證[J]. 光學學報, 2011, 31(9): 0900112.

【12】Dai Enwen, Sun Jianfeng, Yan Aiming, et al.. Demonstration of a laboratory Fresnel telescope synthetic aperture imaging ladar [J]. Acta Optica Sinica, 2012, 32(5): 0528003.
戴恩文, 孫建峰, 閆愛明, 等. 菲涅耳望遠鏡合成孔徑激光雷達實驗室驗證[J]. 光學學報, 2012, 32(5): 0528003.

【13】Guo Liang, Xing Mengdao, Zhang Long, et al.. Research on indoor experimentation of range SAL im aging system [J]. Science in China Series E-Technological Sciences, 2009, 39(10): 1678-1684.
郭亮, 邢孟道, 張龍, 等. 室內(nèi)距離向合成孔徑激光成像的實驗研究[J]. 中國科學(E輯)：技術(shù)科學, 2009, 39(10): 1678-1684.

【14】Hong Guanglie, Wang Jianyu, Meng Zhaohua, et al.. Chirped amplitude modulation and range dimension processing of near infrared synthetic aperture ladar [J]. Journal of Infrared and Millimeter Waves, 2009, 28(3): 229-234.
洪光烈, 王建宇, 孟昭華, 等. Chirp 強度調(diào)制與近紅外激光合成孔徑雷達距離向處理[J]. 紅外與毫米波學報, 2009, 28(3): 229-234.

【15】Wu Jin, Yang Zhaosheng, Zhao Zhilong, et al.. Laboratory demonstration on synthetic aperture ladar imaging with one-way far-field diffraction [J]. Journal of Infrared and Millimeter Waves, 2013, 32(6): 514-518.
吳謹, 楊兆省, 趙志龍, 等. 單程遠場衍射合成孔徑激光雷達成像實驗室演示[J]. 紅外與毫米波學報, 2013, 32(6): 514-518.

【16】Z Yang, J Wu, Z Zhao, et al.. Investigation on layover imaging in synthetic aperture ladar [J]. Frontiers of Optoelectronics, 2013, 6(3): 251-260.

【17】Zhilong Zhao, Jin Wu, Yuanyuan Su, et al.. Three-dimensional imaging interferometric synthetic aperture ladar [J]. Chin Opt Lett, 2014, 12(9): 091101.

【18】Wu Jin. On the development of synthetic aperture ladar imaging [J]. Journal of Radars, 2012, 1(4): 353-360.
吳謹. 關(guān)于合成孔徑激光雷達成像研究[J]. 雷達學報, 2012, 1(4): 353-360.

【19】Lu dong, Sun Jianfeng, Zhou Yu, et al.. Analysis on detection capability of wide field receiving synthetic aperture imaging ladar [J]. Acta Optica Sinica, 2013, 33(7): 0728003.
盧棟, 孫建鋒, 周煜, 等. 大視場接收合成孔徑激光成像雷達探測能力分析[J]. 光學學報, 2013, 33(7): 0728003.

【20】Li Xiaozhen, Wu Yufeng, Guo Liang, et al.. Frequency scaling algorithm for synthetic aperture ladar imaging with wide-scene [J]. Acta Optica Sinica, 2013, 33(12): 1228004.
李小珍, 吳玉峰, 郭亮, 等. 一種適用于合成孔徑激光雷達寬場景成像的頻域變標算法[J]. 光學學報, 2013, 33(12): 1228004.

【21】S Turbide, L Marchese, M Terroux, et al.. Investigation of synthetic aperture ladar for land surveillance applications [C]. SPIE, 2013, 8897: 889709.

【22】Wu Jin. Matched filter in synthetic aperture ladar imaging [J]. Acta Optica Sinica, 2010, 30(7): 2123-2129.
吳謹. 合成孔徑激光雷達成像之匹配濾波器[J]. 光學學報, 2010, 30(7): 2123-2129.

【23】Zhao Zhilong, Wu Jin, Li Feifei, et al.. Calculation and simulation on vibrating targets imaging in stripmap mode synthetic aperture ladar [J]. Acta Optica Sinica, 2012, 32(8): 0828006.
趙志龍, 吳謹, 李斐斐, 等. 條帶模式合成孔徑激光雷達振動目標成像的計算與仿真[J]. 光學學報, 2012, 32(8): 0828006.

【24】Liu Liren. 2D Fourier-tranform imaging algorithm for synthetic aperture imaging ladar [J]. Acta Optica Sinica, 2014, 34(1): 0128001.
劉立人. 合成孔徑激光成像雷達的二維傅里葉變換成像算法[J]. 光學學報, 2014, 34(1): 0128001.

引用該論文

Wu Jin,Zhao Zhilong,Duan Hongcheng,Wu Shudong,Huang Wenwu. Investigation on Image Formation of Wide Swath Synthetic Aperture Ladar Using Non-Symmetric Beam-Pattern Illumination[J]. Acta Optica Sinica, 2015, 35(3): 0328003

吳謹,趙志龍,段洪成,吳曙東,黃文武. 非對稱光斑照明合成孔徑激光雷達寬測繪帶成像研究[J]. 光學學報, 2015, 35(3): 0328003

  本文關(guān)鍵詞：非對稱光斑照明合成孔徑激光雷達寬測繪帶成像研究，由筆耕文化傳播整理發(fā)布。