| Presentation | 1997/4/17 Performance of a QPSK Demodulator using a Double-Product Type : AFC Circuit for Very-Low CNR Environments Nobuaki MOCHIZUKI, Takatoshi SUGIYAMA, Masahiro UMEHIRA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper describes the performance of a QPSK demodulator using a new double-product type AFC circuit to enable fast acquisition and stable operation in very-low CNR environments. The performance of the double-product type AFC circuit for QPSK modulated signals and the performance of the carrier recovery circuit using the proposed AFC circuit are evaluated by computer simulation. The simulation results show the carrier recovery circuit works well in very-low CNR environments. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | multimedia satellite communication / high coding gain FEC / very-low CNR environments / double-product type AFC circuit / reverse-modulation tank limiter scheme |
| Paper # | A・P97-14,SANE97-5,SAT97-5 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 1997/4/17(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Vice Chair | |
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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) | Performance of a QPSK Demodulator using a Double-Product Type : AFC Circuit for Very-Low CNR Environments |
| Sub Title (in English) | |
| Keyword(1) | multimedia satellite communication |
| Keyword(2) | high coding gain FEC |
| Keyword(3) | very-low CNR environments |
| Keyword(4) | double-product type AFC circuit |
| Keyword(5) | reverse-modulation tank limiter scheme |
| 1st Author's Name | Nobuaki MOCHIZUKI |
| 1st Author's Affiliation | NTT Wireless Systems Laboratories() |
| 2nd Author's Name | Takatoshi SUGIYAMA |
| 2nd Author's Affiliation | NTT Wireless Systems Laboratories |
| 3rd Author's Name | Masahiro UMEHIRA |
| 3rd Author's Affiliation | NTT Wireless Systems Laboratories |
| Date | 1997/4/17 |
| Paper # | A・P97-14,SANE97-5,SAT97-5 |
| Volume (vol) | vol.97 |
| Number (no) | 9 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |