Presentation | 1997/2/28 A STUDY ON UP-LINK FREQUENCY CONTROL FOR THE SPACE VLBI MISSION Jun-ichi SHIMIZU, Noriyuki KAWAGUCHI, Haruto HIROSAWA, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | The MUSES-B satellite will be launched for the space VLBI mission in which accurate phase transfer is required. In order to cancel doppler frequency shift due to orbital motion, open-loop frequency control calculated from the predicted orbit will be made. To improve this, We have proposed an algorithm for the closed-loop frequency control, and tested at the link station using the spacecraft simulator. We found that in the orbit except for the perigee, the frequency stability is improved by closed loop control 2-3 times better than open-loop control. However, in the orbit near the perigee, the open-loop frequency control is superior in terms of the effect due to the accelaration change of the gravity field. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | Space VLBI / MUSES-B Satellite / Phase Transfer / Frequency Control |
Paper # | SANE96-96,SAT96-144 |
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Conference Information | |
Committee | SAT |
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Conference Date | 1997/2/28(1days) |
Place (in Japanese) | (See Japanese page) |
Place (in English) | |
Topics (in Japanese) | (See Japanese page) |
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Paper Information | |
Registration To | Satellite Telecommunications (SAT) |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | A STUDY ON UP-LINK FREQUENCY CONTROL FOR THE SPACE VLBI MISSION |
Sub Title (in English) | |
Keyword(1) | Space VLBI |
Keyword(2) | MUSES-B Satellite |
Keyword(3) | Phase Transfer |
Keyword(4) | Frequency Control |
1st Author's Name | Jun-ichi SHIMIZU |
1st Author's Affiliation | College of Science and Technology, Nihon University() |
2nd Author's Name | Noriyuki KAWAGUCHI |
2nd Author's Affiliation | National Astronomical Observatory |
3rd Author's Name | Haruto HIROSAWA |
3rd Author's Affiliation | The Institute of Space and Astronautical Science |
Date | 1997/2/28 |
Paper # | SANE96-96,SAT96-144 |
Volume (vol) | vol.96 |
Number (no) | 548 |
Page | pp.pp.- |
#Pages | 8 |
Date of Issue |