| タイトル | A study and experiment plan for digital mobile communication via satellite |
| 本文（外部サイト） | http://hdl.handle.net/2060/19810010837 |
| 著者（英） | Vincze, A. D.; Evans, R. G.; Jones, J. J.; Craighill, E. J.; Tom, N. N. |
| 著者所属（英） | Ford Aerospace and Communications Corp. |
| 発行日 | 1978-11-30 |
| 言語 | eng |
| 内容記述 | The viability of mobile communications is examined within the context of a frequency division multiple access, single channel per carrier satellite system emphasizing digital techniques to serve a large population of users. The intent is to provide the mobile users with a grade of service consistant with the requirements for remote, rural (perhaps emergency) voice communications, but which approaches toll quality speech. A traffic model is derived on which to base the determination of the required maximum number of satellite channels to provide the anticipated level of service. Various voice digitalization and digital modulation schemes are reviewed along with a general link analysis of the mobile system. Demand assignment multiple access considerations and analysis tradeoffs are presented. Finally, a completed configuration is described. |
| NASA分類 | COMMUNICATIONS AND RADAR |
| レポートNO | 81N19364
WDL-TR7957
NASA-CR-152213 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/169867 |
