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中国科学院大学学报 ›› 2012, Vol. ›› Issue (3): 377-383.DOI: 10.7523/j.issn.2095-6134.2012.3.015

• 信息与电子科学 • 上一篇    下一篇

利用稀疏GCP的多航摄条带机载InSAR定标方法

张林涛1,2,4, 洪峻1,3, 明峰1,2, 王珂1,2,4, 胡继伟1,2,4   

  1. 1. 中国科学院电子学研究所, 北京 100190;
    2. 中国科学院空间信息处理与应用系统技术重点实验室, 北京 100190;
    3. 微波成像技术国家重点实验室, 北京 100190;
    4. 中国科学院研究生院, 北京 100049
  • 收稿日期:2011-02-25 修回日期:2011-04-14 发布日期:2012-05-15
  • 通讯作者: 张林涛
  • 基金资助:
    国家自然科学基金重大项目(60890070)资助

Interferometric calibration method of multi-strip airborne InSAR data using sparse GCPs

ZHANG Lin-Tao1,2,4, HONG Jun1,3, MING Feng1,2, WANG Ke1,2,4, HU Ji-Wei1,2,4   

  1. 1. Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China;
    2. Key Laboratory of Geo-spatial Information Processing and Application System Technology, Chinese Academy of Sciences, Beijing 100190, China;
    3. National Key Laboratory of Microwave Imaging Technology, Beijing 100190, China;
    4. Graduate University, Chinese Academy of Sciences, Beijing 100049, China
  • Received:2011-02-25 Revised:2011-04-14 Published:2012-05-15

摘要: 提出一种利用条带间连接点进行多条带干涉定标的方法.该方法利用条带间重叠区的连接点作为控制点,既实现了多条带数据的干涉定标,又有效减少了地面控制点数量. 实验结果表明,该方法可以准确获取各条带的干涉定标参数,并能解决实际应用中大量布设地面控制点的问题,降低了外定标工作的困难.

关键词: 干涉合成孔径雷达, 干涉参数定标, 敏感度方程, 连接点, 辅助地面控制点

Abstract: Calibration of multi-strip airborne InSAR data is needed in order to generate DEMs over large areas.We propose an interferometric calibration method for multi-strip InSAR data.The method can reduce the GCP number using connected points in the overlap area between strips and is shown to be effective by the experimental simulation. The results indicate that the interferometric parameter error of each strip can be calibrated accurately with a reduced number of GCP which could reduce the difficulty of InSAR outer calibration.

Key words: InSAR, interferometric calibration, sensitivity equation, connected points, supplementary GCP

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