NDLI: 3-D interferometric SAR algorithm for discontinuous distributed objects

Content Provider	IEEE Xplore Digital Library
Author	Fischer, C. Schmidt, K. Wiesbeck, W.
Copyright Year	1999
Description	Author affiliation: Inst. fur Hochstfrequenztech. und Elektronik, Karlsruhe Univ., Germany (Fischer, C.)
Abstract	Interferometric SAR offers the possibility to extract a quasi-threedimensional (sometimes called two-and-a-half-dimensional) image of the target scenario using only a one-dimensional scan. The image is generated by unwrapping the ambiguous (modulo 2/spl pi/) measured phase difference of two SAR images, yielding the absolute phase and therefore height information of a scatterer. However, phase unwrapping algorithms providing an elevation model of the scene can only be used for continuous objects. Discontinous or isolated objects would require a two-dimensional scan, which is not feasible for most of the current remote sensing applications. This paper presents an interferometric processing scheme using two different RF transmit frequencies to enlarge the unambiguous height range. The presented algorithm is capable of extracting height information for a continuous surface as well as for arbitrarily located isolated scatterers. Measurements performed in an anechoic chamber are used for verification.
Starting Page	1534
Ending Page	1536
File Size	357473
Page Count	3
File Format	PDF
ISBN	0780352076
DOI	10.1109/IGARSS.1999.772010
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-06-28
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Layout Antenna measurements Radar scattering Phase measurement Radio frequency Receiving antennas Radar antennas IEEE members Data mining Anechoic chambers
Content Type	Text
Resource Type	Article

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