| Presentation | 2007-01-24 A Study on the Error Estimation Method for Quadrature Modulators and Demodulators : Estimation Algorithm Considering Errors in a Phase Shifter for Error Estimation Atsushi YAMAOKA, Keiichi YAMAGUCHI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | High speed wireless communication requires not only complex baseband signal processing but also performance improvement of analog component such as a quadrature modulator, a quadrature demodulator and a power amplifier. Because of the limit of improving the performance of each analog component, many techniques to compensate for errors in analog components by using digital signal processing have been studied recently. However, these techniques have a problem that these techniques require an additional signal or path to estimate errors, and in consequence analog circuits become complex. For solving this problem we have studied a error estimation technique using a phase shifter that rotates the local signal input to the quadrature demodulator. In this paper we study this technique in the case that a phase shifter has errors and confirm the performance of this method through computer simulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | quadrature modulator / quadrature demodulator / compensation / variable phase shifter |
| Paper # | SIP2006-120,RCS2006-178 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2007/1/17(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 Study on the Error Estimation Method for Quadrature Modulators and Demodulators : Estimation Algorithm Considering Errors in a Phase Shifter for Error Estimation |
| Sub Title (in English) | |
| Keyword(1) | quadrature modulator |
| Keyword(2) | quadrature demodulator |
| Keyword(3) | compensation |
| Keyword(4) | variable phase shifter |
| 1st Author's Name | Atsushi YAMAOKA |
| 1st Author's Affiliation | Corporate Research & Development Center, TOSHIBA Corporation() |
| 2nd Author's Name | Keiichi YAMAGUCHI |
| 2nd Author's Affiliation | Corporate Research & Development Center, TOSHIBA Corporation |
| Date | 2007-01-24 |
| Paper # | SIP2006-120,RCS2006-178 |
| Volume (vol) | vol.106 |
| Number (no) | 478 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |