Polarization orientation angle shifts in urban areas on POLSAR data

Konferenz: EUSAR 2006 - 6th European Conference on Synthetic Aperture Radar
16.05.2006 - 18.05.2006 in Dresden, Germany

Tagungsband: EUSAR 2006

Seiten: 4Sprache: EnglischTyp: 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.