| Presentation | 2000/7/17 Aliasing Avoidance And Reduction of Computational Complexity in Volterra Filters Satoshi KINOSHITA, Yoshinobu KAJIKAWA, Yasuo NOMURA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have proposed a nonlinear inverse system using Volterra filters to eliminate nonlinear distortions of loudspeaker systems. However, the computational complexity of Volterra filters is so huge to realize them on DSP. There are also frequency ranges containing aliasing elements in output signals of Volterra filters. Since the method restricting input signals to avoid aliasing sets the sampling frequency twice as high as Nquist frequency, the method processes unused frequency ranges. In this paper, we therefore propose a composition not to arise aliasing even if it sets the sampling frequency to Nquist frequency. As a result, the composition can reduce the computational complexity of Volterra filters. Secondly, we propose an effective method identifying the Volterra filter in the proposed composition. Moreover, the identification method is applied to nonlinear inverse systems. Finally, simulation results demonstrate the effectiveness of the proposed methods. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | loudspeaker system / Volterra series expansion / nonlinear distortion / multirate signal processing |
| Paper # | DSP2000-72,SST2000-31 |
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| Conference Information | |
| Committee | DSP |
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| Conference Date | 2000/7/17(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | 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) | Aliasing Avoidance And Reduction of Computational Complexity in Volterra Filters |
| Sub Title (in English) | |
| Keyword(1) | loudspeaker system |
| Keyword(2) | Volterra series expansion |
| Keyword(3) | nonlinear distortion |
| Keyword(4) | multirate signal processing |
| 1st Author's Name | Satoshi KINOSHITA |
| 1st Author's Affiliation | Department of Electronics, Faculty of Engineering, Kansai University() |
| 2nd Author's Name | Yoshinobu KAJIKAWA |
| 2nd Author's Affiliation | Department of Electronics, Faculty of Engineering, Kansai University |
| 3rd Author's Name | Yasuo NOMURA |
| 3rd Author's Affiliation | Department of Electronics, Faculty of Engineering, Kansai University |
| Date | 2000/7/17 |
| Paper # | DSP2000-72,SST2000-31 |
| Volume (vol) | vol.100 |
| Number (no) | 209 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |