| Presentation | 1998/11/27 A Proposal Circuit for Avoiding False Lock in Decision Feedback Carrier Recovery Loop Toshihide HAYASHIDA, Seizo SEKI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The characteristics of the decision feedback carrier recovery loop (DFL) and the Costas carrier recovery loop (Costas Loop) for a conventional QPSK signaling were compared and evaluated experimentally. The DFL and the Costas Loop was respectively applied to the experimental QPSK system where the carrier frequency is 10.7 MHz and the simbol rate is 64 kS/s. The performance of the DFL and the Costas Loop was investigated through measurements of the signal-to-noise ratio of the recovered carrier, the lock range, the capture range and the bit error rate. A result was obtained that the capture range of the DFL did not exist due to the false lock, while the signal-to-noise ratio and the bit error rate showed more excellent performance than those of the Costas Loop. Therefore a circuit for avoiding the false lock in the DFL was proposed. With the proposal circuit, it was showed that the false lock in the DFL could be avoided. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | decision feedback carrier recovery loop / Costas carrier recovery loop / lock range / capture range |
| Paper # | RCS98-155 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 1998/11/27(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Proposal Circuit for Avoiding False Lock in Decision Feedback Carrier Recovery Loop |
| Sub Title (in English) | |
| Keyword(1) | decision feedback carrier recovery loop |
| Keyword(2) | Costas carrier recovery loop |
| Keyword(3) | lock range |
| Keyword(4) | capture range |
| 1st Author's Name | Toshihide HAYASHIDA |
| 1st Author's Affiliation | Department of Electrical Engineering, Science University of Tokyo() |
| 2nd Author's Name | Seizo SEKI |
| 2nd Author's Affiliation | Department of Electrical Engineering, Science University of Tokyo |
| Date | 1998/11/27 |
| Paper # | RCS98-155 |
| Volume (vol) | vol.98 |
| Number (no) | 435 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |