| Presentation | 2002/11/14 A Down Conversion Method for Mobile Communications by Bandpass Sampling with Interporation of Quadrature Signal Norihiro SATO, Hiroshi SUZUKI, Satoshi SUYAMA, Kazuhiko FUKAWA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This report proposes a new bandpass sampling method that is suitable for the software radio. The proposed method, which is an extended version of the conventional frequency offset method, derives both in-phase and quadrature signals by using two kinds of sampling timing. The major advantages of the proposed method over conventional techniques are: (1) the proposed method is free from the DC offset, which is caused by the mixture of sampling clock harmonics into the input signal; and (2) its complex number process in the signal detection can overcome the alias problem. Computer simulations demonstrate that the timing difference between the in-phase and quadrature signals results in signal distortion, and that interpolation techniques can reduce the distortion level up to -60dB. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | mobile communications / software radio / bandpass sampling / undersampling |
| Paper # | PCS2002-189 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2002/11/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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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 Down Conversion Method for Mobile Communications by Bandpass Sampling with Interporation of Quadrature Signal |
| Sub Title (in English) | |
| Keyword(1) | mobile communications |
| Keyword(2) | software radio |
| Keyword(3) | bandpass sampling |
| Keyword(4) | undersampling |
| 1st Author's Name | Norihiro SATO |
| 1st Author's Affiliation | Tokyo Institute of Technology() |
| 2nd Author's Name | Hiroshi SUZUKI |
| 2nd Author's Affiliation | Tokyo Institute of Technology |
| 3rd Author's Name | Satoshi SUYAMA |
| 3rd Author's Affiliation | Tokyo Institute of Technology |
| 4th Author's Name | Kazuhiko FUKAWA |
| 4th Author's Affiliation | Tokyo Institute of Technology |
| Date | 2002/11/14 |
| Paper # | PCS2002-189 |
| Volume (vol) | vol.102 |
| Number (no) | 464 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |