| Presentation | 2002/1/3 The Transmission Characteristics of Digitalized AFC Circuit for BPSK Signals Hiroaki TSUTSUMI, Atsushi YAMAZAKI, Seizo SEKI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The carrier frequency of received signals and oscillating frequency of local oscillator in the receiver should be compared under AFC in a PSK signal transmission system. The cross-product frequency discriminator is selected for the discrimination of two input signal frequency differences. The anaolg discriminator does not work well because of phase-lock phenomena. We transformed this anaolg discriminator circuit into digitalized one for the purpose of obtaining stableness, high gain, and flexbility. The performance of AFC circuit using the digitalized discriminator was designed, measured and analyzed under the carrier frequency of 10.7MHz and symbol rates of 64kb/s. Experimented results show that the excellent frequency repression effect of less than 7% is obtained and the error rates were minimized within 0.6dB in the incoming frequency discrepancy of ±25kHz. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | AFC circuit / cross-product frequency discriminator / frequency repression effect / BPSK signal |
| Paper # | 2001-DSP-164,2001-SAT-122,2001-RCS-222 |
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| Conference Information | |
| Committee | DSP |
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| Conference Date | 2002/1/3(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Digital Signal Processing (DSP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | The Transmission Characteristics of Digitalized AFC Circuit for BPSK Signals |
| Sub Title (in English) | |
| Keyword(1) | AFC circuit |
| Keyword(2) | cross-product frequency discriminator |
| Keyword(3) | frequency repression effect |
| Keyword(4) | BPSK signal |
| 1st Author's Name | Hiroaki TSUTSUMI |
| 1st Author's Affiliation | Department of Electrical Engineering, Tokyo University of Science() |
| 2nd Author's Name | Atsushi YAMAZAKI |
| 2nd Author's Affiliation | Cisco Systems, K.K. |
| 3rd Author's Name | Seizo SEKI |
| 3rd Author's Affiliation | Department of Electrical Engineering, Tokyo University of Science |
| Date | 2002/1/3 |
| Paper # | 2001-DSP-164,2001-SAT-122,2001-RCS-222 |
| Volume (vol) | vol.101 |
| Number (no) | 538 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |