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Very-Long-Baseline Interferometry Applied to Geophysics
Symposium - International Astronomical Union, 1993Very-long-baseline Interferometry (VLBI) has opened for study a broad new spectrum of geophysical phenomena including: direct observation of the tectonic motions and deformations of the Earth's crustal plates, observations of unprecedented detail of the variations in the rotation of the Earth, and direct measurement of the elastic deformations of the ...
W. E. Carter, D. S. Robertson
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Very Long Baseline Interferometry
1997The practice of Very Long Baseline Interferometry (VLBI) has undergone a great deal of development since the first demonstrations of the technique in 1967. High quality images including spectroscopy and polarimetry are now routinely produced for a variety of high brightness radio sources.
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Airborne Very Long Baseline Interferometry and Geolocation
Fourth IEEE Workshop on Sensor Array and Multichannel Processing, 2006., 2006A method is presented of performing geolocation of fixed emitters from a single, airborne platform using a two-element, very long baseline interferometer (VLBI) from 10 to 100 feet in length. The interferometer baseline is precisely tracked through a differential GPS system using auxiliary antennas placed in close proximity to the VLBI pair.
E.C. Carlsen, J.C. Kolanek, D.L. Sharpin
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Very long baseline interferometry
2005This contribution reviews the technique of Very Long Baseline Interferometry as a tool for high precision measurements of relative point positions and spatial baseline orientation. The geodetic and geophysical applications of these measurements are discussed in relation to the objectives of global and regional programs of Earth dynamics research ...
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Atmospheric Effects in Very Long Baseline Interferometry
Radio Science, 1970High‐accuracy measurements made by using very long baseline interferometry require corrections for the effects of the atmosphere. A ray‐tracing analysis shows that the phase path through the troposphere differs from the free‐space value by about 3 meters at the zenith. The ionospheric effect predominates at frequencies below 1 GHz.
N. C. Mathur +2 more
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Coherence limits for very-long-baseline interferometry
IEEE Transactions on Instrumentation and Measurement, 1981The quality of the frequency standards used in very-long-baseline interferometry limits the coherent integration time and the accuracy of geodetic experiments except in special cases when clock instabilities can be made to cancel out by using differential interferometry.
Alan E. E. Rogers, James M. Moran
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Very long baseline interferometry with the SKA
2014Aerospace ...
Paragi, Z. (author) +3 more
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