Knowledge Network Node
Acta Geodaetica et Cartographica Sinica. 2014, (01) Core

Calibration of Airborne Interferometric SAR Data Based on Reference DEMChinese Full Text

YUN Ye;ZENG Qiming;JIAO Jian;LIANG Cunren;WANG Qing;ZHOU Xiao;Institute of Remote Sensing and GIS,Peking University;Beijing Key Laboratory of Spatial Information Integration and 3S Application,Peking University;

Abstract: Interferometric calibration without artificial calibrators is significant in terrain mapping and other applications of airborne InSAR especially in mountainous areas.A new calibration method is presented based on reference DEM without any artificial calibrators.A reference DEM with known accuracy is used to simulate SAR image and compared with the DEM derived by InSAR.According to the relationship of real SAR image and simulated SAR image,a number of tie points are selected to be control points to set up the sensitivity matrix.An improved solving method is described based on sensitivity model and a modified processing of InSAR with calibration.After that the interferometric parameters are calibrated and updated InSAR DEM is generated.This paper illustrates the application of this method to InSAR data in Inner Mongolia autonomous region,derived by the dualantenna airborne InSAR system developed by Institute of Electronics,Chinese Academy of Sciences.The difference between InSAR DEM and reference DEM is calculated to evaluate the precision of calibration.
Keywords：

airborne interferometric synthetic aperture radar; interferometric calibration; DEM; artificial calibrators; sensitivity matrix model;

  • DOI：

    10.13485/j.cnki.11-2089.2014.0011

  • Series：

  • Subject：

  • Classification Code：

    P225.1

  • Mobile Reading
    Read on your phone instantly
    Step 1

    Scan QR Codes

    "Mobile CNKI-CNKI Express" App

    Step 2

    Open“CNKI Express”

    and click the scan icon in the upper left corner of the homepage.

    Step 3

    Scan QR Codes

    Read this article on your phone.

  • HTML
  • CAJ Download
  • PDF Download

Download the mobile appuse the app to scan this coderead the article.

Tips: Please download CAJViewer to view CAJ format full text.

Download: 470 Page: 74-82 Pagecount: 9 Size: 2441K

Related Literature
  • Similar Article
  • Reader Recommendation
  • Associated Author