| タイトル | Space VLBI telecommunication characteristics, protection criteria, and frequency sharing |
| 本文（外部サイト） | http://hdl.handle.net/2060/19950010867 |
| 著者（英） | Gutierrez-Luaces, B. O.; Bishop, D. F. |
| 著者所属（英） | Jet Propulsion Lab., California Inst. of Tech. |
| 発行日 | 1994-11-15 |
| 言語 | eng |
| 内容記述 | A brief description of the technical characteristics of space VLBI is made, emphasizing the VLBI cross-correlation process. The signal-to-noise ratio of the cross-correlation process should be maintained as large as possible for the duration of the observation. Protection of this process from unwanted interference is a primary objective. The telecommunication radio links required in a space VLBI system are identified and characterized. Maximum bandwidths are suggested, as well as the minimum carrier frequencies required for the telemetering and the phase-transfer radio links. Planned space VLBI system models-Radioastron (Russia), VLBI Space Observatory Project (VSOP) (Japan), and the DSN orbiting VLBI subnet. (United States)--are taken as a baseline to determine the interference criteria. It is concluded that existing interference criteria for near-Earth research satellites are suitable for the protection of the space VLBI systems planned. |
| NASA分類 | COMMUNICATIONS AND RADAR |
| レポートNO | 95N17282 |
| 権利 | No Copyright |
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