Abstract
When the covariance matrix formulation is used for multi-look 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 bi-frequency, bi-temporal change detection with full and dual polarimetry data.
Original language | English |
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Journal | I E E E Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
Volume | 10 |
Issue number | 11 |
Pages (from-to) | 5143-5144 |
ISSN | 1939-1404 |
DOIs |
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Publication status | Published - 2017 |
Keywords
- Complex covariance matrix test statistic
- Complex wishart distribution
- Dual polarization
- EMISAR
- Full polarization
- Remote sensing change detection
- Quad polarization