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Principal Component Analysis (PCA) in the Context of Radar Polarimetry

Boerner, Wolfgang-Martin und Lüneburg, Ernst und Danklmayer, Andreas (2007) Principal Component Analysis (PCA) in the Context of Radar Polarimetry. The Electromagnetic Academy. Progress in Electromagnetics Research Symposium (PIERS), 2007-03-26 - 2007-03-30, Peking, China. ISSN 1559-9450

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Offizielle URL: http://www.piers.org

Kurzfassung

Statistical and computational techniques for revealing the internal structure that underlies the set of random correlated data exists in a great variety at present; and target decomposition theorems, either in the coherent or incoherent formulation, are well established. In spite of this fact a rather innovative and new concept is presented in this contribution. In turn the Principal Component Analysis (PCA) is considered to possibly add value to existing approaches, and it allows for an interpretation of polarimetric synthetic aperture radar measurements using variables obtained via linear transformation. Starting with the Sinclair backscatter matrix S which will be further transformed into the so called target feature vector by stacking column elements of S and generating the covariance matrices averaged over a certain pixel array, we show, how the Sinclair backscatter matrix is decomposed into the sum of a maximum of four 2 x 2 elementary point scatter matrices which are weighted by the principal components, whereas the variances of these components agree with the eigenvalues of the covariance matrix. This mathematical development defines a decomposition which expresses scattering mechanism from distributed targets in terms of scattering matrices via an incoherent step.

Dokumentart:Konferenzbeitrag (Vortrag, Paper)
Titel:Principal Component Analysis (PCA) in the Context of Radar Polarimetry
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Boerner, Wolfgang-MartinUniversity of Chicago, UIC-ECE Communications, Sensing & Navigation Laboratory, USA
Lüneburg, ErnstEML Consultants, Germany
Danklmayer, AndreasNICHT SPEZIFIZIERT
Datum:März 2007
Referierte Publikation:Nein
In ISI Web of Science:Nein
Verlag:The Electromagnetic Academy
ISSN:1559-9450
Status:veröffentlicht
Stichwörter:Radar Polarimetry
Veranstaltungstitel:Progress in Electromagnetics Research Symposium (PIERS)
Veranstaltungsort:Peking, China
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:2007-03-26 - 2007-03-30
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben SAR-Expert-Support-Lab (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Hochfrequenztechnik und Radarsysteme > Mikrowellen-Systeme
Institut für Hochfrequenztechnik und Radarsysteme
Hinterlegt von: Dr.-Ing. Andreas Danklmayer
Hinterlegt am:04 Apr 2007
Letzte Änderung:12 Dez 2013 20:21

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