Abstract: | Instead of a hydrogen maser, a carefully selected Crystal oscillator which is phase locked to a Cesium (Cs) frequency standard for time range of more than 100 seconds is adopted to the time and frequency standard of a geodetic VLBI experiment. The domestic VLBI experiment with 55km baseline using the Crystal oscillator at one end was made in Japan and the obtained error of the baseline vector components were 4cm, and that of the baseline length was 3cm. This system may be operated after only 2 hours warm up. These results coincides with those of conventional geodetic Laser ranging and VLBI using a hydrogen maser within the formal error. A VLBI experiment with over 1000km haselines were carried out successfully from October 1988, and over 11000km baseline between Japan and Antarctica was carried out successfully in January 1990. |
Published in: |
Proceedings of the 22th Annual Precise Time and Time Interval Systems and Applications Meeting December 4 - 6, 1990 Sheraton Premiere Hotel Vienna, Virginia |
Pages: | 131 - 143 |
Cite this article: | Kiuchi, Hiloshi, Amagai, Jun, "A HIGHLY STABLE CRYSTAL OSCILLATOR APPLIED TO GEODETIC VLBl EXPERIMENT," Proceedings of the 22th Annual Precise Time and Time Interval Systems and Applications Meeting, Vienna, Virginia, December 1990, pp. 131-143. |
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