| Presentation | 2014-05-23 A study of accuracy-improvement methods for Delta-DOR measurements : Toward the goal of 1-nano radian accuracy Hiroshi TAKEUCHI, Atsushi TOMIKI, Yuta KOBAYASHI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Delta-DOR (Delta Differential One-way Ranging) is an application of VLBI (Very Long Baseline Interferometry) technique which enables very precise angular position measurements for deep space spacecrafts. The technique play an essential role in the critical events such as a planetary orbit insertion, landing, and gravity assist operations. International space agencies had been working for the improvement of the measurement accuracy of the Delta-DOR, and the current accuracy of the measurement reaches a-few nano radian level. In this lecture, the principle of the technique are described and several techniques that provides the better Delta-DOR accuracy are introduced. In particular a sweeping tone technique which aims at a reduction of phase ripple error in the ground station transmit line are described in detail. This newly developed technique will be used for an asteroid exploration mission PROCYON that will be launched in 2014 as a sub payload mission of the Hayabusa-2. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Delta-DOR / Orbit Determination / Deep-Space Exploration / VLBI |
| Paper # | SANE2014-18 |
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| Committee | SANE |
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| Conference Date | 2014/5/16(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Space, Aeronautical and Navigational Electronics (SANE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A study of accuracy-improvement methods for Delta-DOR measurements : Toward the goal of 1-nano radian accuracy |
| Sub Title (in English) | |
| Keyword(1) | Delta-DOR |
| Keyword(2) | Orbit Determination |
| Keyword(3) | Deep-Space Exploration |
| Keyword(4) | VLBI |
| 1st Author's Name | Hiroshi TAKEUCHI |
| 1st Author's Affiliation | ISAS, JAXA() |
| 2nd Author's Name | Atsushi TOMIKI |
| 2nd Author's Affiliation | ISAS, JAXA |
| 3rd Author's Name | Yuta KOBAYASHI |
| 3rd Author's Affiliation | ISAS, JAXA |
| Date | 2014-05-23 |
| Paper # | SANE2014-18 |
| Volume (vol) | vol.114 |
| Number (no) | 48 |
| Page | pp.pp.- |
| #Pages | 2 |
| Date of Issue | |