| タイトル | Design of a 24-channel transmultiplexer |
| 著者（英） | Peterson, A. M.; Narasimha, M. J. |
| 著者所属（英） | Stanford Univ. |
| 発行日 | 1979-12-01 |
| 言語 | eng |
| 内容記述 | The design of a transmultiplexer capable of performing the bilateral conversion between one 1544 kbit/s digital signal (which represents 24 PCM coded voice channels) and two analog group signals (each one containing 12 voice channels in the 60-108 kHz band) is investigated. It is shown that an FIR filter bank required as part of such a transmultiplexer can be realized efficiently by cascading a discrete cosine transform processor and a weighting network. Fast convolution algorithms are derived for evaluating the cosine transform. A method of using the symmetry conditions to reduce the computation rate in the weighting network and an elegant hardware configuration for implementing it are also discussed. |
| NASA分類 | COMMUNICATIONS AND RADAR |
| レポートNO | 80A21077 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/423228 |
