Title
A portable 35 GHZ cross-track interferometer for topographic and surface change measurements
Abstract
In the following, we present first results obtained from the design, construction and deployment of a 35 GHz fixed-point radar interferometer, that uses the principles of FMCW for generating a range resolving signal. Using a single transmit antenna and two receive, separated by an interferometric baseline, it is possible to determine phase differences between the two receive channels, and given the viewing geometry, to solve for the target topography. To test the system described in this short paper, it was deployed on a local mountain top, some 270m above the local terrain. With knowledge of the nominal topography (measured by the Shuttle Radar Topography Mission; SRTM), and sufficiently large interferometric height ambiguity, it is possible to solve for the topography, as seen at 35 GHz, and to monitor differences in the observed topography which may be due to differences in volume scattering, surface motion, and surface dielectric change.
Year
DOI
Venue
2010
10.1109/IGARSS.2010.5653972
Geoscience and Remote Sensing Symposium
Keywords
Field
DocType
radar antennas,radar interferometry,radar signal processing,receiving antennas,surface topography measurement,transmitting antennas,cross-track interferometer,fixed-point radar interferometer,frequency 35 GHz,interferometric baseline,local terrain,phase difference,range resolving signal,receive antenna,receive channel,shuttle radar topography mission,surface change measurement,surface dielectric change,surface motion,topographic measurement,transmit antenna,volume scattering
Radar,Radar imaging,Computer science,Topographic map,Terrain,Remote sensing,Optics,Azimuth,Communication channel,Shuttle Radar Topography Mission,Interferometry
Conference
ISSN
ISBN
Citations 
2153-6996 E-ISBN : 978-1-4244-9564-1
978-1-4244-9564-1
1
PageRank 
References 
Authors
0.63
0
3
Name
Order
Citations
PageRank
Paul Siqueira112829.52
Harish Vedantham210.63
Tony Swochak310.63