| Presentation | 2006-01-27 A Nonlinear Distortion Compensation Method with an Adaptive Predistorter and Negative Feed-back Yitao ZHANG, Osamu MUTA, Yoshihiko AKAIWA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | As a method to compensate for the nonlinear distortion at a power amplifier, the adaptive predistorter and the negative feed-back system are known. Although the feed-back method is a simple technique, its instability problem becomes strict for a higher feedback gain to achieve a higher compensation effect. On the other hand, the predistorter needs long time to calculate the suitable parameters. In this paper, we propose a nonlinear distortion compensation method for the narrow-band signal. In this method, adaptive predistorter and negative feedback are combined. With computer simulations, we show that the proposed scheme achieves both five times faster convergence speed than that of the perdistorter and three times longer permissible delay time than that of negative feed-back, while keeping the required compensation performance. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Nonlinear distortion compensation / Negative feed back / Adaptive predistorter / Convergence speed |
| Paper # | RCS2005-168 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2006/1/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| 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 Nonlinear Distortion Compensation Method with an Adaptive Predistorter and Negative Feed-back |
| Sub Title (in English) | |
| Keyword(1) | Nonlinear distortion compensation |
| Keyword(2) | Negative feed back |
| Keyword(3) | Adaptive predistorter |
| Keyword(4) | Convergence speed |
| 1st Author's Name | Yitao ZHANG |
| 1st Author's Affiliation | Graduate School of Information Science & Electrical Engineering, Kyushu University() |
| 2nd Author's Name | Osamu MUTA |
| 2nd Author's Affiliation | Graduate School of Information Science & Electrical Engineering, Kyushu University |
| 3rd Author's Name | Yoshihiko AKAIWA |
| 3rd Author's Affiliation | Graduate School of Information Science & Electrical Engineering, Kyushu University |
| Date | 2006-01-27 |
| Paper # | RCS2005-168 |
| Volume (vol) | vol.105 |
| Number (no) | 560 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |