抄録
A compact-spectrum and interference-resistant digital video transmission system which employs an offset QPSK (quadrature-phase shift keying) modulation scheme and a 32-Mb/s video codec followed by a high-coding-rate and high-gain Viterbi decoder is proposed. The system achieves a signal-to-noise ratio of higher than 52 dB (weighted) and a protection ratio of 20 dB higher against cochannel interference than that of conventional analog FM systems. It can transmit a high-quality NTSC video signal over nonlinearly amplified narrow-bandwidth satellite channels with high-security digital encryption.
| 本文言語 | English |
|---|---|
| ページ | 1729-1734 |
| ページ数 | 6 |
| 出版ステータス | Published - 1989 12月 1 |
| イベント | IEEE Global Telecommunications Conference & Exhibition (GLOBECOM '89). Part 1 (of 3) - Dallas, TX, USA 継続期間: 1989 11月 27 → 1989 11月 30 |
Other
| Other | IEEE Global Telecommunications Conference & Exhibition (GLOBECOM '89). Part 1 (of 3) |
|---|---|
| City | Dallas, TX, USA |
| Period | 89/11/27 → 89/11/30 |
ASJC Scopus subject areas
- 工学（全般）