SAR image localization and target recognition research based on the azimuth circle adjustment

  • Authors:

  • Guang Yang;Xiaojuan Wang;Dejun Li;Bai Zhang;Kun Gao

  • Affiliations:

  • Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun, China and Special Profession Department, Aviation University of Air Force, Changchun, China;Special Profession Department, Aviation University of Air Force, Changchun, China;Special Profession Department, Aviation University of Air Force, Changchun, China;Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun, China;-

  • Venue:
  • WSEAS Transactions on Circuits and Systems
  • Year:
  • 2009

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Abstract

According to the work mechanism of space synthetic aperture radar (SAR), this text introduced the localization algorithms of SAR image and the method of system error adjustment. On the basis of the concept of the azimuth circle and the combination of the north direction coordinate system of geography, carries on the adjustment to the localization data, so increased the SAR image localization accuracy at large scale, combines the simulated data and the image of Radarsat satellite, validate the localization algorithm and the adjustment method. The results had indicated that this algorithm might enable the localization accuracy of Radarsat image to achieve 400-600m, if the establishment of earth model might more accurate, the ground station could provide the more precise orbital data, the localization accuracy may further enhance. After the studying localization, summarizes to the research evolvement and the development uptrend of the goal pretreatment, the automatic detection and the recognition aspect in the SAR imagery, table the proposal for the future SAR image's recognition and the localization research.