Layover solution in multibaseline InSAR using interpolated arrays

Author

Bordoni, F. ; Jakobsson, A. ; Lombardini, F. ; Gini, F.

Author_Institution

Dept. of "Ingegneria dell\´\´Informazione", Pisa Univ., Italy

fYear

2004

fDate

18-21 Dec. 2004

Firstpage

175

Lastpage

178

Abstract

This work deals with the problem of direction of arrival estimation of interferometric synthetic aperture radar (InSAR) signals in presence of layover. The focus is on realistic acquisition systems with a low number of phase centres and nonuniform array geometry. An interpolated array approach is proposed, in order to apply spectral estimation techniques designed for uniform linear arrays. In particular, interpolated MUSIC and weighted subspace fitting (WSF) algorithms are developed and investigated.

Keywords

array signal processing; direction-of-arrival estimation; electromagnetic wave interferometry; linear antenna arrays; radar antennas; radar signal processing; synthetic aperture radar; MUSIC; WSF; direction of arrival estimation; interferometric synthetic aperture radar; interpolated array approach; multibaseline InSAR signal; nonuniform array geometry; realistic acquisition system; spectral estimation technique; uniform linear array; weighted subspace fitting algorithm; Direction of arrival estimation; Geometry; Interpolation; Multiple signal classification; Phased arrays; Signal resolution; Spatial resolution; Speckle; Synthetic aperture radar; Synthetic aperture radar interferometry;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and Information Technology, 2004. Proceedings of the Fourth IEEE International Symposium on

Print_ISBN

0-7803-8689-2

Type

conf

DOI

10.1109/ISSPIT.2004.1433715

Filename

1433715