| タイトル | A pattern jitter free AFC scheme for mobile satellite systems |
| 本文（外部サイト） | http://hdl.handle.net/2060/19940018336 |
| 著者（英） | Yoshida, Shousei |
| 著者所属（英） | Nippon Electric Co. Ltd. |
| 発行日 | 1993-01-01 |
| 言語 | eng |
| 内容記述 | This paper describes a scheme for pattern jitter free automatic frequency control (AFC) with a wide frequency acquisition range. In this scheme, equalizing signals fed to the frequency discriminator allow pattern jitter free performance to be achieved for all roll-off factors. In order to define the acquisition range, frequency discrimination characateristics are analyzed on a newly derived frequency domain model. As a result, it is shown that a sufficiently wide acquisition range over a given system symbol rate can be achieved independent of symbol timing errors. Additionally, computer simulation demonstrates that frequency jitter performance improves in proportion to E(sub b)/N(sub 0) because pattern-dependent jitter is suppressed in the discriminator output. These results show significant promise for applciation to mobile satellite systems, which feature relatively low symbol rate transmission with an approximately 0.4-0.7 roll-off factor. |
| NASA分類 | COMMUNICATIONS AND RADAR |
| レポートNO | 94N22809 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/114493 |
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