Acta Geodaetica et Cartographica Sinica ›› 2015, Vol. 44 ›› Issue (5): 533-540.doi: 10.11947/j.AGCS.2015.20130244

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Multi-temporal and Dual-polarization Interferometric SAR for Land Cover Type Classification

WANG Xinshuang1,2, CHEN Erxue1, LI Zengyuan1, YAO Wanqiang3, ZHAO Lei1   

  1. 1. Research Institute of Forest Resource Information Techniques, CAF, Beijing 100091, China;
    2. Shaanxi Geomatics Center of NASG, Xi'an 710054, China;
    3. Department of Geomatics, Xi'an University of Science and Technology, Xi'an 710054, China
  • Received:2013-12-10 Revised:2014-12-01 Online:2015-05-20 Published:2015-05-27
  • Supported by:

    The National High-tech Research and Development Program of China(863 Program)(Nos.2011AA120405;2011AA120404)

Abstract:

In order to study SAR land cover classification method, this paper uses the multi-dimensional combination of temporal,polarization and InSAR data. The area covered by space borne data of ALOS PALSAR in Xunke County,Heilongjiang Province was chosen as test site. A land cover classification technique of SVM based on multi-temporal, multi-polarization and InSAR data had been proposed, using the sensitivity to land cover type of multi-temporal, multi-polarization SAR data and InSAR measurements, and combing time series characteristic of backscatter coefficient and correlation coefficient to identify ground objects. The results showed the problem of confusion between forest land and urban construction land can be nicely solved, using the correlation coefficient between HH and HV, and also combing the selected temporal, polarization and InSAR characteristics. The land cover classification result with higher accuracy is gotten using the classification algorithm proposed in this paper.

Key words: multi-temporal, polarization, InSAR, land cover classification

CLC Number: