Presentation | 1999/6/25 An adaptability study of quasi-zenithal satellite orbits for land mobile satellite communications Masato Takahashi, Kazuhiro Kimura, Masato Tanaka, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | Quasi-zenithal satellite orbits are discussed to be applied for mobile satellite communication, because the orbits are able to provide high elevation angles for cities in medium latitude. The satellite orbits are achieved when an inclination is attached to geostationaly satellite orbits. The orbits provides high elevation angle of more than 70 degrees in Tokyo and more than 60 degrees in all areas of Japan. These high elevation angles, however, can be blocked by buildings. In this background, it is important to evaluate duration of communication links between the satellites and vehicles running in the real roads. In this paper, we propose an effective evaluation method using blocking probability of signals from satellites of the Global Positioning System. Results of this evaluation are also discussed. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | mobile satellite communication / high elevation angle / duration / quasi-zenithal satellite |
Paper # | SANE99-31 |
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Committee | SANE |
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Conference Date | 1999/6/25(1days) |
Place (in Japanese) | (See Japanese page) |
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Topics (in Japanese) | (See Japanese page) |
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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) | An adaptability study of quasi-zenithal satellite orbits for land mobile satellite communications |
Sub Title (in English) | |
Keyword(1) | mobile satellite communication |
Keyword(2) | high elevation angle |
Keyword(3) | duration |
Keyword(4) | quasi-zenithal satellite |
1st Author's Name | Masato Takahashi |
1st Author's Affiliation | Kashima Space Research Center, Communications Research Laboratory, Ministry of Posts and Telecommunications() |
2nd Author's Name | Kazuhiro Kimura |
2nd Author's Affiliation | Kashima Space Research Center, Communications Research Laboratory, Ministry of Posts and Telecommunications |
3rd Author's Name | Masato Tanaka |
3rd Author's Affiliation | Kashima Space Research Center, Communications Research Laboratory, Ministry of Posts and Telecommunications |
Date | 1999/6/25 |
Paper # | SANE99-31 |
Volume (vol) | vol.99 |
Number (no) | 156 |
Page | pp.pp.- |
#Pages | 6 |
Date of Issue |