| Presentation | 2007-12-21 Design and implementation of a new DVB-S2 modem for SNG applications Shuichi HAYASHI, Takanori SHOJI, Yohei NISHI, Eiji WATANABE, Yoshikuni MIYATA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we present the performance of a new DVB-S2 modem for SNG (Satellite News Gathering) application. Since the DVB-S2 specification adopts LDPC codes as error correcting code, the new modem must work at much lower carrier to noise ratio (CNR) than a DVB-S modem. To cope with operation under very low CNR condition, we propose a new demodulation scheme utilizing known data patterns such as header and pilot data. It is confirmed by experiments that bit error ratios (BER) of the proposed scheme are very close to theoretical values even in wide carrier and clock frequency deviation range. In case of 32APSK, in particular, the developed modem shows good BER performance within 1.5dB degradation from the theoretical value. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | DVB-S2 / SNG / LDPC codes / APSK |
| Paper # | SAT2007-58 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 2007/12/13(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Satellite Telecommunications (SAT) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Design and implementation of a new DVB-S2 modem for SNG applications |
| Sub Title (in English) | |
| Keyword(1) | DVB-S2 |
| Keyword(2) | SNG |
| Keyword(3) | LDPC codes |
| Keyword(4) | APSK |
| 1st Author's Name | Shuichi HAYASHI |
| 1st Author's Affiliation | Mitsubishi Electric Corporation, Communication Systems Center() |
| 2nd Author's Name | Takanori SHOJI |
| 2nd Author's Affiliation | Mitsubishi Electric Corporation, Communication Systems Center |
| 3rd Author's Name | Yohei NISHI |
| 3rd Author's Affiliation | Mitsubishi Electric Corporation, Communication Systems Center |
| 4th Author's Name | Eiji WATANABE |
| 4th Author's Affiliation | Mitsubishi Electric Corporation, Communication Systems Center |
| 5th Author's Name | Yoshikuni MIYATA |
| 5th Author's Affiliation | Mitsubishi Electric Corporation, Information Technology R & D Center |
| Date | 2007-12-21 |
| Paper # | SAT2007-58 |
| Volume (vol) | vol.107 |
| Number (no) | 401 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |