Estimation and improvement of coherence in SAR interferograms

Author

Cattabeni, M. ; Monti-Guarnieri, A. ; Rocca, F.

Author_Institution

Dipartimento di Elettronica, Politecnico di Milano, Italy

Volume

2

fYear

1994

fDate

8-12 Aug. 1994

Firstpage

720

Abstract

SAR interferometric surveys are affected by several sources of decorrelation noise. An improvement of the phase accuracy can be achieved by minimizing that noise: this could require a careful "tuning" of some processing dependent parameters. Beside a phase preserving focusing. The sensitivity of coherence with respect of processing parameters is studied, and techniques are presented to minimize the effect of different decorrelation sources.

Keywords

coherence; geophysical techniques; radar applications; radar imaging; remote sensing by radar; synthetic aperture radar; SAR interferogram; coherence; decorrelation noise; geophysical measurement technique; land surface; phase accuracy; radar remote sensing; signal processing; synthetic aperture radar interferometry; terrain mapping; Azimuth; Decorrelation; Focusing; Geometry; Noise figure; Noise reduction; Phase estimation; Phase noise; Reflectivity; Scattering; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 1994. IGARSS '94. Surface and Atmospheric Remote Sensing: Technologies, Data Analysis and Interpretation., International

Print_ISBN

0-7803-1497-2

Type

conf

DOI

10.1109/IGARSS.1994.399239

Filename

399239