匀速运动目标逆合成孔径激光雷达成像算法

阮航; 吴彦鸿; 叶伟

匀速运动目标逆合成孔径激光雷达成像算法

阮航^1,2,
吴彦鸿¹,
叶伟³

1.
装备学院光电装备系,北京101416;
2.
北京跟踪与通信技术研究所,北京100094;
3.
装备学院信息装备系,北京101416

基金项目:

国家863计划

详细信息

作者简介:
阮航（1987- ），男，博士生，主要从事逆合成孔径激光雷达成像方面的研究。Email：dragonhang9@163.com；吴彦鸿（1971- ），男，教授，博士生导师，主要从事信息获取与处理、信息对抗等方面的研究。Email：mail2wyh@163.com

阮航（1987- ），男，博士生，主要从事逆合成孔径激光雷达成像方面的研究。Email：dragonhang9@163.com；吴彦鸿（1971- ），男，教授，博士生导师，主要从事信息获取与处理、信息对抗等方面的研究。Email：mail2wyh@163.com

中图分类号: N958

Inverse synthetic aperture ladar imaging algorithm for uniform motion targets

1.
Department of Photoelectric Equipment,the Academy of Equipment,Beijing 101416,China;
2.
Beijing Institute of Tracking and Telecommunications Technology,Beijing 100094,China;
3.
Department of Information Equipment,the Academy of Equipment,Beijing 101416,China

摘要: 由于逆合成孔径激光雷达（ISAL）发射信号具有超短波长、超大带宽的特点，在对匀速运动目标成像时，其回波信号存在色散效应，且目标散射点容易产生越距离单元徙动，利用传统的距离-多普勒成像算法将无法获取理想的ISAL图像。在对匀速运动目标回波精确建模的基础上，深入分析了由于目标运动引入的距离色散。提出利用分数阶Fourier变换（FRFT）补偿距离像色散，并对距离压缩后的回波信号进行预相干化处理，之后结合keystone变换消除目标散射点存在的越距离单元徙动，并最终实现对目标的高分辨成像。仿真实验验证了成像算法的有效性。
- 逆合成孔径激光雷达 /
- 匀速运动目标 /
- 分数阶Fourier变换 /
- 越距离单元徙动
Abstract: The transmitting signal of inverse synthetic aperture Ladar (ISAL) has the characteristics of short wavelength and large bandwidth. When imaging an uniform motion target, dispersion in range direction and migration through resolution cells (MTRC) exist in the ISAL image. Therefore, the conventional range-Doppler imaging algorithm is inapplicable. The precise ISAL echo model was established for an uniform motion target, and the motion-induced range dispersion effect was analyzed in detail. In this paper, an ISAL imaging algorithm was proposed for uniform motion targets. The fractional Fourier transform(FRFT) was adopted to eliminate the range dispersion. By using the keystone formatting technique, the MTRC was compensated after a pre-coherent processing to the range-compressed signal. Finally, the high-resolution ISAL image was realized. Simulation results confirm the validity of the proposed imaging algorithm.
- inverse synthetic aperture ladar(ISAL) /
- uniform motion targets /
- fractional Fourier transform(FRFT) /
- migration through resolution cells(MTRC)

[1]	Buck J R, Krause B W, Malm A I R, et al. Synthetic aperture imaging at optical wavelengths[C]//2009 Conference on Lasers and Electro-Optics, 2009: 1-2.
[2]
[3]
[4]	Liu Liren. Synthetic aperture Laser imaging radar (I): defocused and phase-biased telescope for reception antenna[J]. Acta Optica Sinica, 2008, 28(5): 997-1000. (in Chinese) 刘立人. 合成孔径激光成像雷达(I): 离焦和相位偏置望远镜接收天线[J]. 光学学报, 2008, 28(5): 997-1000.
[5]
[6]	Krause B W, Buck J, Ryan C, et al. Synthetic aperture ladar flight demonstration [C]//2011 Conference on Laser and Electro-Optics, 2011, 1-2.
[7]	Guo Liang, Xing Mengdao, Zeng Xiaodong, et al. Inverse synthetic aperture lidar imaging of indoor real data [J]. Infrared and Laser Engineering, 2011, 40(4): 637-642. (in Chinese) 郭亮, 邢孟道, 曾晓东, 等. 室内实测数据的逆合成孔径激光雷达成像[J]. 红外与激光工程, 2011, 40(4): 637-642.
[8]
[9]
[10]	Zang Bo, Zhang Lei, Tang Yu, et al. Study on space aperture of inverse synthetic aperture imaging Ladar with low SNR [J]. Journal of Electronics Information Technology, 2010, 32(12): 2808-2813. (in Chinese) 臧博, 张磊, 唐禹, 等. 逆合成孔径成像激光雷达低信噪比稀疏多孔径成像方法研究[J]. 电子与信息学报, 2010, 32 (12): 2808-2813.
[11]	He Jin, Zhang Qun, Yang Xiaoyou, et al. Imaging algorithm for inverse synthetic aperture imaging LADAR [J]. Infrared and Laser Engineering, 2012, 41(4): 1094-1100. (in Chinese) 何劲, 张群, 杨小优, 等. 逆合成孔径成像激光雷达成像算法[J]. 红外与激光工程, 2012, 41(4): 1094-1100.
[12]
[13]
[14]	He Jin, Zhang Qun, Yang Xiaoyou, et al. High resolution imaging algorithm for inverse synthetic aperture imaging LADAR [J]. Systems Engineering and Electronics, 2011, 33 (8): 1750-1755. (in Chinese) 何劲, 张群, 杨小优, 等. 逆合成孔径成像激光雷达高分辨成像算法[J]. 系统工程与电子技术, 2011, 33 (8):1750-1755.
[15]	Xing M D, Wu R B, Lan J Q, et al. Migration through resolution cell compensation in ISAR imaging[J]. IEEE GRS Letter, 2004, 1(2):141-144.
[16]
[17]	Ozaktas H M, Arikan O, Kutay M A, et al. Digital computation of the fractional Fourier transform [J]. IEEE Trans Signal Processing, 1996, 44(9): 2141-2150.
[18]
[19]
[20]	Wang G Y, Bao Z. The minimum entropy criterion of range alignment in ISAR motion compensation [C]//Proceeding Conference Radar'97, 1997: 236-239.
[21]	Wahl D E, Eichel P H, Ghiglia D C, et al. Phase gradient autofocus-a robust tool for high resolution SAR phase correction[J]. IEEE Trans Aerospace and Electronic System, 1994, 30(3): 827-835.

[1]	冯杰, 冯扬, 刘翔, 邓陈进, 喻忠军. 远距离监视激光雷达动目标快速检测 . 红外与激光工程, 2023, 52(4): 20220506-1-20220506-9. doi: 10.3788/IRLA20220506
[2]	阮航, 张强, 杨雨昂, 徐灿. 非均匀转动空间目标天基逆合成孔径激光雷达成像 . 红外与激光工程, 2023, 52(2): 20220406-1-20220406-9. doi: 10.3788/IRLA20220406
[3]	张靖鹏, 陈起行, 王妍卉, 董磊, 郑珍珍, 张文鑫. 天基逆合成孔径激光雷达LEO目标成像模式设计 . 红外与激光工程, 2023, 52(5): 20220679-1-20220679-10. doi: 10.3788/IRLA20220679
[4]	尹红飞, 郭亮, 荆丹, 邢孟道, 曾晓东, 胡以华. 天基合成孔径激光雷达成像参数分析 . 红外与激光工程, 2021, 50(2): 20200144-1-20200144-12. doi: 10.3788/IRLA20200144
[5]	田鹤, 毛宏霞, 刘铮, 曾铮. 机载逆合成孔径激光雷达微动目标稀疏成像 . 红外与激光工程, 2020, 49(S2): 20200190-20200190. doi: 10.3788/IRLA20200190
[6]	张珂殊, 吴一戎. 距离向扫描合成孔径激光雷达目标三维重建 . 红外与激光工程, 2019, 48(3): 330001-0330001(7). doi: 10.3788/IRLA201948.0330001
[7]	吴谨, 赵志龙, 白涛, 李明磊, 李丹阳, 万磊, 唐永新, 刁伟伦. 差分合成孔径激光雷达高分辨率成像实验 . 红外与激光工程, 2018, 47(12): 1230003-1230003(7). doi: 10.3788/IRLA201847.1230003
[8]	李光远, 孙建锋, 周煜, 卢智勇, 张国, 许蒙蒙, 张波. 直视合成孔径激光雷达自补偿高速空间波前调制器 . 红外与激光工程, 2018, 47(10): 1030001-1030001(7). doi: 10.3788/IRLA201847.1030001
[9]	胡烜, 李道京, 田鹤, 赵绪锋. 激光雷达信号相位误差对合成孔径成像的影响和校正 . 红外与激光工程, 2018, 47(3): 306001-0306001(12). doi: 10.3788/IRLA201847.0306001
[10]	黄宇翔, 张鸿翼, 李飞, 徐卫明, 胡以华. 相位调制激光雷达成像设计及仿真 . 红外与激光工程, 2017, 46(5): 506003-0506003(6). doi: 10.3788/IRLA201746.0506003
[11]	李道京, 杜剑波, 马萌, 胡烜, 乔明. 天基合成孔径激光雷达系统分析 . 红外与激光工程, 2016, 45(11): 1130002-1130002(8). doi: 10.3788/IRLA201645.1130002
[12]	李飞, 张鸿翼, 徐卫明, 舒嵘. 天基合成孔径激光雷达非合作目标成像系统设计与实验 . 红外与激光工程, 2016, 45(10): 1030001-1030001(8). doi: 10.3788/IRLA201645.1030001
[13]	张艳, 陈涌, 周鼎富, 侯天晋. 锐化函数对合成孔径激光雷达成像图像的影响 . 红外与激光工程, 2015, 44(9): 2588-2592.
[14]	李飞, 张鸿翼, 吴军, 洪光烈, 徐卫明, 舒嵘. 强度编码合成孔径激光雷达原理与实验 . 红外与激光工程, 2015, 44(9): 2575-2582.
[15]	吴谨, 李斐斐, 赵志龙, 杨兆省, 王东蕾, 唐永新, 苏园园, 梁娜. 条带模式合成孔径激光雷达不依赖PGA的高分辨率成像演示 . 红外与激光工程, 2014, 43(11): 3559-3564.
[16]	李小珍, 吴玉峰, 郭亮, 曾晓东. 合成孔径激光雷达下视三维成像构型及算法 . 红外与激光工程, 2014, 43(10): 3276-3281.
[17]	徐显文, 洪光烈, 张琨锋, 胡以华, 舒嵘. 月面成像合成孔径激光雷达性能分析 . 红外与激光工程, 2013, 42(3): 621-625.
[18]	张艳, 史晓丁, 陈涌, 赵彬, 周鼎富, 侯天晋. 基于外差探测的合成孔径激光雷达成像模拟 . 红外与激光工程, 2013, 42(8): 2027-2031.
[19]	阮航, 吴彦鸿, 张书仙. 基于天基逆合成孔径激光雷达的静止轨道目标成像 . 红外与激光工程, 2013, 42(6): 1611-1616.
[20]	朱丰, 张群, 冯有前, 罗迎, 李开明, 梁必帅. 逆合成孔径激光雷达鸟类目标压缩感知识别方法 . 红外与激光工程, 2013, 42(1): 256-261.

点击查看大图

计量

文章访问数: 425
HTML全文浏览量: 84
PDF下载量: 132
被引次数: 0

姓名
邮箱
手机号码
标题
留言内容
验证码

留言板

匀速运动目标逆合成孔径激光雷达成像算法

Inverse synthetic aperture ladar imaging algorithm for uniform motion targets

计量

匀速运动目标逆合成孔径激光雷达成像算法

1. 装备学院光电装备系,北京101416;

2. 北京跟踪与通信技术研究所,北京100094;

3. 装备学院信息装备系,北京101416

English Abstract

Inverse synthetic aperture ladar imaging algorithm for uniform motion targets

1. Department of Photoelectric Equipment,the Academy of Equipment,Beijing 101416,China;

2. Beijing Institute of Tracking and Telecommunications Technology,Beijing 100094,China;

3. Department of Information Equipment,the Academy of Equipment,Beijing 101416,China

全文HTML

目录

留言板

匀速运动目标逆合成孔径激光雷达成像算法

Inverse synthetic aperture ladar imaging algorithm for uniform motion targets

计量

出版历程

匀速运动目标逆合成孔径激光雷达成像算法

1. 装备学院光电装备系,北京101416; 2. 北京跟踪与通信技术研究所,北京100094; 3. 装备学院信息装备系,北京101416

English Abstract

Inverse synthetic aperture ladar imaging algorithm for uniform motion targets

1. Department of Photoelectric Equipment,the Academy of Equipment,Beijing 101416,China; 2. Beijing Institute of Tracking and Telecommunications Technology,Beijing 100094,China; 3. Department of Information Equipment,the Academy of Equipment,Beijing 101416,China

全文HTML

目录

1. 装备学院光电装备系,北京101416;

2. 北京跟踪与通信技术研究所,北京100094;

3. 装备学院信息装备系,北京101416

1. Department of Photoelectric Equipment,the Academy of Equipment,Beijing 101416,China;

2. Beijing Institute of Tracking and Telecommunications Technology,Beijing 100094,China;

3. Department of Information Equipment,the Academy of Equipment,Beijing 101416,China