| Presentation | 1998/7/24 Improvement of CDMA System Timing using WAVELET Transform Hitoshi UJIIE, Kazuyuki MARUO, Takashi SHIMURA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | On the CDMA system for the 2nd generation digital mobile communication, the system timing is generating by the time and frequency reference system(TFRS)using GPS.However, the duration when the TFRS does not receive GPS radio wave occurs to the base station which was installed in the high-rise building area and the ravine and so on.Moreover, when the trouble occurs to the GPS antenna system, the TFRS can not receive GPS radio wave for long time.In these case, the performance of the system timing in the base station degrades and reliability as the communication system deteriorates.This paper describes a technique in order to suppress the degradation of the system performance using WAVELET transform, even when TFRS can not receive GPS radio wave. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | GPS / CDMA / WAVELET / OCXO / Holdover / IS-95 / cdma2000 |
| Paper # | SANE98-31 |
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| Conference Information | |
| Committee | SANE |
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| Conference Date | 1998/7/24(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 | Space, Aeronautical and Navigational Electronics (SANE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improvement of CDMA System Timing using WAVELET Transform |
| Sub Title (in English) | |
| Keyword(1) | GPS |
| Keyword(2) | CDMA |
| Keyword(3) | WAVELET |
| Keyword(4) | OCXO |
| Keyword(5) | Holdover |
| Keyword(6) | IS-95 |
| Keyword(7) | cdma2000 |
| 1st Author's Name | Hitoshi UJIIE |
| 1st Author's Affiliation | ADVANTEST LABORATORIES LTD.() |
| 2nd Author's Name | Kazuyuki MARUO |
| 2nd Author's Affiliation | ADVANTEST LABORATORIES LTD. |
| 3rd Author's Name | Takashi SHIMURA |
| 3rd Author's Affiliation | ADVANTEST LABORATORIES LTD. |
| Date | 1998/7/24 |
| Paper # | SANE98-31 |
| Volume (vol) | vol.98 |
| Number (no) | 215 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |