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.
|Journal||I E E E Journal of Selected Topics in Applied Earth Observations and Remote Sensing|
|Publication status||Published - 2015|
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- Complex covariance matrix test statistic
- Complex Wishart distribution
- Dual polarization
- Full polarization
- Quad polarization
- Remote sensing change detection