Statistics – Applications
Scientific paper
Jul 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011yera.confe..12d&link_type=abstract
The 41st Young European Radio Astronomers Conference, held at University of Manchester/Jodrell Bank Observatory, 18-20 July 2011
Statistics
Applications
Scientific paper
PRIDE, the Planetary Radio Interferometry and Doppler Experiment initiative, focuses at enhancing the scientific return of prospective planetary missions by involving in the Earth-based segment of the missions a network of radio telescopes. PRIDE provides a direct characterisation of the planetary orbiters and surface elements (landers) signals by means of their Doppler and VLBI tracking. Such the tracking enables estimates of the spacecraft (S/C) state vectors which can be used for a variety of scientific applications. The experiment is beneficial to literally any planetary mission since PRIDE's requirements to the onboard instrumentation are minimal and are met on most planetary mission S/C irrespective to PRIDE.
In this work, we present some preliminary results of recent test VLBI observations of spacecraft carried out using the European VLBI Network (EVN) telescopes in the phase-referencing mode. Some peculiarities of such the observations are described, for a S/C being a near-field source when observing with an Earth-based VLBI array of telescopes. The results of a narrow-band signal processing of the S/C signal, as well as test broad-band processing using the new software correlator SFX at the Joint Institute for VLBI in Europe (JIVE) are also presented.
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