[an error occurred while processing this directive] [an error occurred while processing this directive] [an error occurred while processing this directive]
[an error occurred while processing this directive]

弹箭与制导学报 >

2014 , Vol. 34 >Issue 1: 169 - 171,175

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2014.01.049

相关技术

基于球面波聚焦卷积算法的近场共焦层析成像

  • 田八林 ,
  • 梁华强 ,
  • 罗永健 ,
  • 陈瑶 ,
  • 夏春芳
展开
  • 1 西安通信学院, 西安 710106
    2 中国兵器工业第203研究所, 西安 710065
    3 91033 部队, 山东青岛 266000

田八林(1980-),男,湖北黄冈人,讲师,博士,研究方向:电信交换目标检测等。

收稿日期: 2013-05-15

  网络出版日期: 2025-05-29

基金资助

国家自然科学基金(61102160,61179002, 41202245);陕西省自然科学基础研究项目(2011JM8030)资助

收起

Confocal Tomography Imaging in Near-field Based on Spherical Wave Convolution Algorithm

  • TIAN Balin ,
  • LIANG Huaqiang ,
  • LUO Yongjian ,
  • CHEN Yao ,
  • XIA Chunfang
Expand
  • 1 Xi'an Communications Institute, Xi'an 710106, China
    2 No. 203 Research Institute of China Ordnance Industries, Xi'an 710065, China
    3 No. 91033 Unit, Shandong Qingdao 266000, China

Received date: 2013-05-15

  Online published: 2025-05-29

Fold

摘要

针对合成孔径雷达三维层析成像实现三维层析成像算法仅适用于远场、靠增加基线数提高分辨率的办法会大大增加系统复杂度等问题,提出一种基于近场圆周扫描的共焦层析成像诊断方案。方案结合合成孔径与共焦层析成像思想,修正球面波聚焦卷积算法的映射关系,完成空时共焦成像。仿真和试验结果表明该方案可以克服高度模糊,通过单条基线一次扫描,进行准三维近场成像。

关键词： 近场成像; 共焦诊断; 合成孔径雷达

本文引用格式

田八林 , 梁华强 , 罗永健 , 陈瑶 , 夏春芳 . 基于球面波聚焦卷积算法的近场共焦层析成像[J]. 弹箭与制导学报, 2014 , 34(1) : 169 -171,175 . DOI: 10.15892/j.cnki.djzdxb.2014.01.049

Abstract

Tomography imaging of synthetic aperture radar can realize 3D tomography although its algorithm is simple, computation quantity is small, but is mainly suitable for the far field conditions. In addition, by increasing the number of baseline to improve the resolution will greatly increase the system complexity. According to the above problems, a tomography imaging technique in near-field using confocal circular SAR was proposed. Two techniques of synthetic aperture and confocal imaging were combined to achieve space-time confocal imaging using SAR on a circular or curved orbit. The results of digital simulation and experiment show that the proposed algorithm overcomes altitude ambiguity and has the capability to extract 3-D imaging information from a target scene.

Key words： near-field imaging; confocal diagnosis; SAR

[an error occurred while processing this directive]

参考文献

[1]
柳祥乐 多基线层析成像合成孔径雷达研究[D]. 北京: 中国科学院电子学研究所, 2007.
[2]
A Reigber Airborne polarmetric SAR tomography[D]. Stuttgart, Germany: University Stuttgart, 2001.
[3]
P Berardino, G Fornaro, R Lanari. Multi-pass synthetic aperture radar for 3-D focusing[C] // Int. Proc. Geosciences and Remote Sensing Symp, 2002.
[4]
A Broquetas, R De Porrata. Circular synthetic aperture ra-dar (C-SAR) system for ground-based applications[J]. Electronics Letters, 1997, 33(11): 988-989.
[5]
Mehrdad Soumekh. Reconnaissance with slant plane circu-lar SAR imaging[J]. IEEE Trans. on Image Processing, 1996, 5(8): 1252-1265.
[6]
Akira Ishimaru, F Tsz-King Chan, Yasuo Kuga. An imaging technique using confocal circular synthetic aperture radar[J]. IEEE Trans. on Geosciences and Remote Sensing, 1998, 36(5): 1524-1530.
[7]
Tsz-King Chan, Yasuo Kuga, Akira Ishimaru. Experimental studies on circular SAR imaging in clutter using angular correlation function technique[J]. IEEE Trans. on Geosciences and Remote Sensing, 1999, 37(5): 2192-2197.
Options
文章导航

/

〈 〉

[an error occurred while processing this directive]