INSTRUMENTAL DELAY CALIBRATION WITH ZERO BASE-LINE INTERFEROMETRY FORVLBI TIME COMPARISON

Authors
KIUCHI H HAMA S AMAGAI J YOSHINO T IMAE M
Citation
H. Kiuchi et al., INSTRUMENTAL DELAY CALIBRATION WITH ZERO BASE-LINE INTERFEROMETRY FORVLBI TIME COMPARISON, IEE proceedings. Science, measurement and technology, 144(4), 1997, pp. 181-188
Citations number
8
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
IEE proceedings. Science, measurement and technology → ACNP
ISSN journal
13502344
Volume
144
Issue
4
Year of publication
1997
Pages
181 - 188
Database
ISI
SICI code
1350-2344(1997)144:4<181:IDCWZB>2.0.ZU;2-Q
Abstract
A highly accurate zero baseline interferometry (ZBI) method for measur ing the instrumental delay in VLBI time comparisons has been developed . ZBI is a kind of portable clock method but adds a separately calibra table portable reciever as a reference. Instrumental delay is an impor tant factor in determining the accuracy of time-and-frequency comparis ons. Fundamental experiments using the ZBI method show a measuring acc uracy of closer than 0.2 ns.