A coherent fiber link for very long baseline interferometry
نویسندگان
چکیده
منابع مشابه
Very Long Baseline Interferometry and the VLBAASP
Phase-referencing allows phase calibration of VLBI data. Using regular observations of a nearby calibrator source, delay, delay-rate, and phase corrections can be derived and their eeects removed from the target source visibility data. This technique allows imaging much weaker objects than is possible via fringe-tting methods. We examine the main types of phase error in VLBI observations (geome...
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A brief Note compiled by: Prof. Madhav N. Kulkarni, IIT Bombay Since the inception of the Very Long Baseline Interferometry (VLBI) system in 1967, this radio interferometry technique has revolutionised the fields of geodesy, geodynamics and astrometry. With the unprecedented precision and resolution made possible by VLBI various tasks such as geodetic positioning, reference frames interconnect...
متن کاملVery Long Baseline Interferometry and the VLBAASP
The special problems encountered when performing spectral-line VLBI observations are discussed in this Chapter. In particular, the usefulness of Fourier transforming measured visibility data with respect to time, delay or frequency for purposes of fringe detection and calibration is clariied.
متن کاملAnalog Transmission for Space Very Long Baseline Interferometry
Studies of advanced space very long baseline interferometry (SVLBI) missions envision data rates as high as 8 Gb/s, but to accomplish such high-rate data transfer from the spacecraft to ground using digital downlinks requires high effective isotropic radiated power (EIRP), as well as complex and substantially advanced modulation and receiving techniques. For these reasons, analog signal transfe...
متن کاملUsing Small Radio Telescopes for Very Long Baseline Interferometry
Throughout the summer development has continued on the next generation of the Small Radio Telescope for use as a Very Long Baseline Interferometry type interferometer. This paper discusses the difficulties with setting up this new interferometer and presents some results obtained using this small radio telescope interferometer. We used 3 small radio telescopes to form one baseline of about 5 me...
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ژورنال
عنوان ژورنال: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
سال: 2015
ISSN: 0885-3010
DOI: 10.1109/tuffc.2015.007221