Interferometric Synthetic Aperature Radar
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Searching the Internet under "Interferometric Synthetic Aperature Radar"
turns up the following:
the article The
Use of Synthetic Aperture Radar Interferometry to Measure Seismic Displacements
of the Landers Earthquake by Simon Tanner who is apparently
studying Msc Remote Sensing at University College London. The abstract
of Tanner's essay states: "Interferometric Synthetic Aperture Radar is
a relatively new technique using two or more radar images in order to show
change on the earth's surface over time. It can be used to measure the
co- and post-seismic deformations created by earthquakes, and this paper
will address the techniques used in the monitoring of the Landers Earthquake,
an event that occurred in 1992. Through the use of interferograms
and techniques such as the phase gradient it was possible to see how up
to 20 fringes were created each representing 14mm of displacement radiating
from the fault lines covering a distance of about 70km."
Tanner's paper references other interesting papers, including Small-Scale
Deformations Associated with the 1992 Landers, California Earthquake mapped
by synthetic aperture radar interferometry Phase Gradients by Evelyn
J. Price and David T. Sandwell of the Cecil H. and Ida M. Green Institute
of Geophysics and Planetary Physics, Scripps Institution of Oceanography,
La Jolla, CA.
The Federation of American Scientists (FAS) has an article, Interferometric
Synthetic Aperture Radar (IFSAR) Shuttle Radar Topography Mission (SRTM)
the Earth, Swath by Swath by WARREN E. LEARY of the New York Times.
(Earth Observations Commercial Applications Program - Synthetic Aperture
Crustal Strain and Topography
from Synthetic Aperture Radar Interferometry, has a very nice interferogram
of the Hector Mine earthquake region.
and Surface Change Detection has the best explanation of the SAR that
I've been able to find: II. BASIC
PRINCIPLES OF SAR INTERFEROMETRY.
COMPUTING TECHNOLOGY APPLICATIONS FOR SAR INTERFEROMETRY AND IMAGING SCIENCE
a nice interferogram of a volcano in Russia.
Sandia National Laboratory has a nice article, What
is Synthetic Aperture Radar?
The mathematics of this can get pretty complicated (see, for instance,
Statistical Description of Polarimetric and Interferometric Synthetic Aperture
Radar, in Procedings of Mathematical and Physical Sciences,
Volume 449, Issue 1937, (6/8/95)).
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