Change Detection in Full and Dual Polarization, Single- and Multifrequency SAR Data

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Abstract

When the covariance matrix formulation is used for multilook polarimetric synthetic aperture radar (SAR) data, the complex Wishart distribution applies. Based on this distribution, a test statistic for equality of two complex variance–covariance matrices and an associated asymptotic probability of obtaining a smaller value of the test statistic are given. In a case study, airborne EMISAR C- and L-band SAR images from the spring of 1998 covering agricultural fields and wooded areas near Foulum, Denmark, are used in single- and bifrequency, bitemporal change detection with full and dual polarimetry data.
Original languageEnglish
JournalI E E E Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Volume8
Issue number8
Pages (from-to)4041-4048
ISSN1939-1404
DOIs
Publication statusPublished - 2015

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Keywords

  • Complex covariance matrix test statistic
  • Complex Wishart distribution
  • Dual polarization
  • Full polarization
  • EMISAR
  • Quad polarization
  • Remote sensing change detection

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