| Presentation | 2003/7/25 Proposal of Time Delayed Diversity (TDD) System for L-band Mobile Broadcasting Satellite and GPS Measuring method T HATSUDA, D UTAGAWA, T TSUKAHARA, T HASHIMOTO, J MASUDA, J MURAKAMI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper deals with the L-band time delayed diversity (TDD) system characteristics for mobile broadcast geostationary satellite orbit (GSO) system, which is measured by using the GPS (Global Positioning System) satellite. To design digital mobile broadcast satellite system with TDD concept, it must estimate attenuation characteristics by urban building, electrical light poles and trees etc. Southern orbital arc GPS satellite signals with elevation angle about 40 degrees data are used for propagation characteristics measurements, rather than actual GSO satellite. To overcome urban signal attenuation, the effect of TDD system characteristics are examined from processing measured GPS data. About 3～5 minutes delay time are adequate, and satellite visibilities can be improved about twice. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Geostationary satellite orbit (GSO) N Mobile broadcast / Time delayed diversitv (TDD) system GPS |
| Paper # | A・P2003-94 |
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| Conference Information | |
| Committee | AP |
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| Conference Date | 2003/7/25(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
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| Paper Information | |
| Registration To | Antennas and Propagation (A・P) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Proposal of Time Delayed Diversity (TDD) System for L-band Mobile Broadcasting Satellite and GPS Measuring method |
| Sub Title (in English) | |
| Keyword(1) | Geostationary satellite orbit (GSO) N Mobile broadcast |
| Keyword(2) | Time delayed diversitv (TDD) system GPS |
| 1st Author's Name | T HATSUDA |
| 1st Author's Affiliation | Hokkaido Institute of Technology() |
| 2nd Author's Name | D UTAGAWA |
| 2nd Author's Affiliation | Hokkaido Institute of Technology |
| 3rd Author's Name | T TSUKAHARA |
| 3rd Author's Affiliation | Hokkaido Institute of Technology |
| 4th Author's Name | T HASHIMOTO |
| 4th Author's Affiliation | Hokkaido Institute of Technology |
| 5th Author's Name | J MASUDA |
| 5th Author's Affiliation | Hokkaido Institute of Technology |
| 6th Author's Name | J MURAKAMI |
| 6th Author's Affiliation | Hokkaido Institute of Technology |
| Date | 2003/7/25 |
| Paper # | A・P2003-94 |
| Volume (vol) | vol.103 |
| Number (no) | 232 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |