A Novel Geometric Calibration and Target Location Algorithm for Air-Bo r n e SAR Image

SUN Wen-feng; CHEN An; DENG Hai-tao; YU Gen-miao

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A Novel Geometric Calibration and Target Location Algorithm for Air-Bo r n e SAR Image

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- A Novel Geometric Calibration and Target Location Algorithm for Air-Bo r n e SAR Image
- Acta Electronica Sinica Vol. 35, Issue 3, Pages: 553-556(2007)
- 作者机构：
  
  1. 中国电子科技集团公司第38研究所,安徽,合肥,230031
  2. 武汉雷达学院,湖北,武汉,430019
  3. 中国电子科技集团公司第38研究所安徽合肥,230031
  4. 武汉雷达学院湖北武汉,430019
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN957.51
- Published：2007
- 稿件说明：
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SUN Wen-feng, CHEN An, DENG Hai-tao, et al. A Novel Geometric Calibration and Target Location Algorithm for Air-Bo r n e SAR Image[J]. Acta Electronica Sinica, 2007, 35(3): 553-556.
DOI：

SUN Wen-feng, CHEN An, DENG Hai-tao, et al. A Novel Geometric Calibration and Target Location Algorithm for Air-Bo r n e SAR Image[J]. Acta Electronica Sinica, 2007, 35(3): 553-556. DOI：

摘要

机载合成孔径雷达常采用时域子孔径成像

所得到的图像是地面散射单元到成像平面的一种空变映射.通过联立求解等距离方程和等多普勒方程得到了这种映射的解析表达式

提出了一种新的图像无参考点几何校正和像素点定位的距离一多普勒算法

并用点阵仿真和外场试验验证了算法的有效性.

Abstract

Sub-aperture imaging algorithm is often used in air-borne Synthetic Aperture Radar(SAR) in practice

the true position of every pixel in the image lie on the geometric relationship between radar and scatter cell

A new geometric calibration and target location algorithm is proposed

which obtains coordinates of each pixel in SAR image by means of solution of range equation and Doppler equation.The validity of the algorithm is validated by simulated scatter cell array and location experiment.

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Institution of Synthetic Automation,Xi'an Jiaotong University

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