Title :
The first comparative experiment of VLBI and two-way time transfer with better than 1 nsec precision
Author :
Yoshino, Taizoh ; Takahashi, Fujinobu ; Imamura, Kuniyasu ; Kunimori, Hiroo ; Koyama, Yasuhiro ; Kawai, Eiji
Author_Institution :
Commun. Res. Lab., Minist. of Posts & Telecommun., Tokyo, Japan
Abstract :
Time transfer technique comparison between very long baseline interferometry (VLBI) and two way satellite method was firstly performed between Koganei (Tokyo) and Kashima (Ibaragi) over 110 km baseline in November, 1992. Clock variation in two stations are compared by both techniques with a precision of better than 1 nsec. Obtained clock variation by both techniques behaves in the same manner. However, significant scale difference was found in the results. The most likely explanation is that the VLBI clock parameters are coupled with the other adjusted parameters
Keywords :
clocks; measurement standards; radioastronomical techniques; radiowave interferometry; 110 km; Kashima; Koganei; VLBI; clock variation; scale difference; two way satellite; two-way time transfer; very long baseline interferometry; Clocks; Communication standards; Data analysis; Delay effects; Delay estimation; Global Positioning System; Instruments; Measurement standards; Modems; Satellite broadcasting;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1994. IMTC/94. Conference Proceedings. 10th Anniversary. Advanced Technologies in I & M., 1994 IEEE
Conference_Location :
Hamamatsu
Print_ISBN :
0-7803-1880-3
DOI :
10.1109/IMTC.1994.351986
