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1篇 您的检索式:作者名="KAMATA Shun"
    题名 作者 年代 出处 被引量
1High-accuracy same-beam VLBI observations using Shanghai and Urumqi telescopes显示文摘The same-beam VLBI observations of Rstar and Vstar,which were two small satellites of Japanese lunar mission,SELENE,were successfully performed by using Shanghai and Urumqi 25-m telescopes. When the separation angle between Rstar and Vstar was less than 0.1 deg,the differential phase delay of the X-band signals between Rstar and Vstar on Shanghai-Urumqi baseline was obtained with a very small error of 0.15 mm rms,which was reduced by 1-2 order compared with the former VLBI results. When the separation angle was less than 0.56 deg,the differential phase delay of the S-band signals was also obtained with a very small error of several mm rms. The orbit determination for Rstar and Vstar was performed,and the accuracy was improved to a level of several meters by using VLBI and Doppler data. The high-accuracy same-beam differential VLBI technique is very useful in orbit determination for a spacecraft,and will be used in orbit determination for Mars missions of China Yinghuo-1 and Russia Phobos-grunt.KIKUCHI Fuyuhiko KAMATA Shun'ichi MATSUMOTO Koji HANADA Hideo 2009Science China(Physics,Mechanics & Astronomy)2009,52,12:11
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