| Presentation | 1995/12/14 Optimum Multiframe Length Despreading Code Sequences for Colored Noise Suppression Kohei OHTAKE, Noriyoshi KUROYANAGI, Nobuaki ITO, Hitoshi SUZUKI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In spread spectrum communication system under colored noise environments, an unique demodulation technique called SMD (Shaped M-sequence Demodulation) has been reported, which improves the demodulated SNR far beyond the process gain by using the optimized despreading code waveform. This paper proposes a multiframe length demodulation technique which achieves more SNR improvements by taking the despreading code optimization over the multiframe length. Specifically for a two frame length demodulation scheme a system configuration, SNR analysis and the optimum despreading code design method are described. Examples of the optimum despreading code and SNR characteristics for some sinusoidal and band expanded noise models are also shown, which confirm the usefulness of the technique. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Spread spectrum communication / Colored noise / SMD / SN ratio / Multiframe / optimum despreading code |
| Paper # | DSP95-120,SST95-94 |
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| Conference Information | |
| Committee | DSP |
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| Conference Date | 1995/12/14(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) | Optimum Multiframe Length Despreading Code Sequences for Colored Noise Suppression |
| Sub Title (in English) | |
| Keyword(1) | Spread spectrum communication |
| Keyword(2) | Colored noise |
| Keyword(3) | SMD |
| Keyword(4) | SN ratio |
| Keyword(5) | Multiframe |
| Keyword(6) | optimum despreading code |
| 1st Author's Name | Kohei OHTAKE |
| 1st Author's Affiliation | College of Engineering, Hosei Univ.() |
| 2nd Author's Name | Noriyoshi KUROYANAGI |
| 2nd Author's Affiliation | Faculty of Technology, Tokyo Engineering Univ. |
| 3rd Author's Name | Nobuaki ITO |
| 3rd Author's Affiliation | College of Engineering, Hosei Univ. |
| 4th Author's Name | Hitoshi SUZUKI |
| 4th Author's Affiliation | College of Engineering, Hosei Univ. |
| Date | 1995/12/14 |
| Paper # | DSP95-120,SST95-94 |
| Volume (vol) | vol.95 |
| Number (no) | 416 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |