Optimal interferometric ScanSAR focusing

Author

Guarnieri, A. Monti ; Rocca, E. ; Guccione, Pietro ; Cafforio, C.

Author_Institution

Dipt. di Elettronica, Politecnico di Milano, Italy

Volume

3

fYear

1999

fDate

1999

Firstpage

1718

Abstract

This paper deals with phase preserving focusing for very low resolution ScanSAR. Conventional techniques get ScanSAR focusing by exploiting the SAR matched reference, and compensate scalloping by an inverse antenna weighting. Yet, this approach introduces a space-variant distortion in the focused impulse response (IRF). A rather different focusing technique is then proposed, where the set of space-variant focusing kernels is computed by means of Wiener deconvolution. They perform ScanSAR focusing and descalloping at one time, achieving the finest resolution and without distorting the impulse response

Keywords

geophysical techniques; radar imaging; remote sensing by radar; synthetic aperture radar; terrain mapping; InSAR; SAR; ScanSAR focusing; Wiener deconvolution; descalloping; geophysical measurement technique; impulse response; interferometric SAR; land surface; optimal interferometric focusing; phase preserving focusing; radar remote sensing; scalloping; space-variant focusing kernel; synthetic aperture radar; terrain mapping; very low resolution; Azimuth; Deconvolution; Filtering; Focusing; Fourier transforms; Image resolution; Kernel; Matched filters; Scattering; Shape;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 1999. IGARSS '99 Proceedings. IEEE 1999 International

Conference_Location

Hamburg

Print_ISBN

0-7803-5207-6

Type

conf

DOI

10.1109/IGARSS.1999.772072

Filename

772072