| タイトル | Channel characterisation for future Ka-band Mobile Satellite Systems and preliminary results |
| 本文（外部サイト） | http://hdl.handle.net/2060/19950008262 |
| 著者（英） | Arbesser-Rastburg, Bertram; Buonomo, Sergio; Sforza, Mario |
| 著者所属（英） | European Space Agency. European Space Research and Technology Center |
| 発行日 | 1994-08-01 |
| 言語 | eng |
| 内容記述 | Mobile satellite systems (MSS) are presently designed or planned to operate, with the exception of OMNITRACKS, in the lower part of the frequency spectrum (UHF to S-bands). The decisions taken at the last World Administrative Radio Conference in 1992 to increase the allocated L- and S-bands for MSS services will only partly alleviate the problem of system capacity. In addition the use of L-and S-band frequencies generally requires large antenna apertures on board the satellite terminal side. The idea of exploiting the large spectrum resources available at higher frequencies (20-30 GHz) and the perspective of reducing user terminal size (and possibly price too) have spurred the interest of systems designers and planners. On the other hand, Ka-band frequencies suffer from increased slant path losses due to atmospheric attenuation phenomena. The European Space Agency (ESA) has recently embarked on a number of activities aimed at studying the effect of the typical mobile propagation impairments at Ka-band. This paper briefly summarizes ESA efforts in this field of research and presents preliminary experimental results. |
| NASA分類 | COMMUNICATIONS AND RADAR |
| レポートNO | 95N14676 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/109612 |
