Analysis on Impacts of KVN to Geodetic VLBI Network

Details Analysis on Impacts of KVN to Geodetic VLBI Network Analysis on Impacts of KVN to Geodetic VLBI Network

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006jass...23..337c&link_type=abstract

Journal of Astronomy and Space Sciences. Vol. 23, no. 4, 337-344

Astronomy and Astrophysics

Astronomy

Kvn, Geodetic Vlbi, Impacts, Simulation, Analysis

Scientific paper

KVN simulation, which is focused on evaluating the impacts of KVN to geodetic VLBI network, was performed. The KVN is under construction with three radio telescopes VLBI system for radio astronomy and space geodesy. To distinguish the impacts of KVN on global and local scale networks, we designed two different sizes of VLBI networks, namely, KVN-Asia and KVN-Pacific. While the former consisted of Far East Asia region VLBI stations, the latter consisted of pacific region VLBI stations. The primary purpose of our simulation is quantitative evaluation of KVN impacts before and after the participation of KVN in the previous two virtual networks. We selected two different sets of parameters to be estimated in the simulation as indices of evaluating estimation precision: station coordinates and EOPs. The station coordinates are evaluating index for KVN-Asia and the EOPs are another evaluating index for KVN-Pacific. From the simulation results of comparisons between evaluating i!
ndexes, 50% and 20% of maximum improvements for KVN-Asia and KVN-Pacific were anticipated respectively. We expect that the space geodetic use of KVN will be focused on the several promising research fields which are proposed through the simulation results.

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