Title :
Interferometry with ScanSAR
Author :
Guarnieri, A. Monti ; Prati, C. ; Rocca, F.
Author_Institution :
Dipartimento di Elettronica, Politecnico di Milano, Italy
Abstract :
ScanSAR data have non-stationary spectral properties. An efficient, phase-preserving azimuth focusing technique is introduced. ScanSAR interferometry is then studied: a misalignment in the scanning cycles of repeated surveys causes a decorrelation that is also slope-dependent. Yet, most of this decorrelation can be removed by means of a proper space-variant filtering. Results got by simulating ScanSAR by using ERS-1 raw data are shown
Keywords :
geophysical signal processing; geophysical techniques; radar applications; radar imaging; remote sensing by radar; spaceborne radar; synthetic aperture radar; SAR; ScanSAR; decorrelation; geophysical measurement technique; image processing; interferometry; land surface imaging; misalignment; nonstationary spectral properties; phase-preserving azimuth focusing; radar imaging; radar remote sensing; repeated survey; scanning cycle; signal processing; slope-dependent; space-variant filtering; terrain mapping; Azimuth; Decorrelation; Directive antennas; Filtering; Focusing; Frequency; Geometry; Interferometry; Pulse compression methods; Synthetic aperture radar;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1995. IGARSS '95. 'Quantitative Remote Sensing for Science and Applications', International
Conference_Location :
Firenze
Print_ISBN :
0-7803-2567-2
DOI :
10.1109/IGARSS.1995.520451
