Polarization orientation angle shifts in urban areas on POLSAR data

Conference: EUSAR 2006 - 6th European Conference on Synthetic Aperture Radar
05/16/2006 - 05/18/2006 at Dresden, Germany

Proceedings: EUSAR 2006

Pages: 4Language: englishTyp: PDF

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Kimura, Hiroshi (Gifu University, Japan)
Papathanassiou, Konstantinos P.; Hajnsek, Irena (DLR, Germany)

Polarization orientation angle shift can be induced by not only terrain slopes but also scatterers in urban areas. A vertical wall of a building or house can cause the polarization orientation angle shift. Three algorithms to estimate the polarization orientation angle shift of build-up areas are compared for L-band and X-band data and two different areas. The soundness of the circular co-polarization algorithm can be explained by that this algorithm employs only an assumption of reflection symmetry. However, not only it additional assumptions are needed for other two algorithms to apply.