| Presentation | 2002/2/25 Property of Multirate Discrete Fourier Transform Hiroko YAMAMOTO, Kentaro NOGUCHI, Yoshiaki TADOKORO, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Multirate discrete Fourier transform (MR-DFT) is proposed as one of the DFT algorithms. In this paper, we present that the noise bandwidth affects the accuracy of Fourier coefficient estimation in the MR-DFT. Then we propose the improved algorithms based on the frequency shift (SMR-DFT) and the band limited (3 point-mean-method and PMR-DFT). The 3 point-mean-method is a pretreatment which reduces the influence of the noise by averaging of the sample points and the PMR-DFT is an algorithm which performs parallel processing of the MR-DFT with different sample points using the periodicity of a signal. We show that the proposed algorithms improve the accuracy of Fourier coefficient estimation in the MR-DFT by the computer simulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Discrete Fourier Transform / Multirate / Frequency Shift |
| Paper # | CAS2001-106 |
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| Conference Information | |
| Committee | CAS |
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| Conference Date | 2002/2/25(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Circuits and Systems (CAS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Property of Multirate Discrete Fourier Transform |
| Sub Title (in English) | |
| Keyword(1) | Discrete Fourier Transform |
| Keyword(2) | Multirate |
| Keyword(3) | Frequency Shift |
| 1st Author's Name | Hiroko YAMAMOTO |
| 1st Author's Affiliation | Toyohashi University of Technology() |
| 2nd Author's Name | Kentaro NOGUCHI |
| 2nd Author's Affiliation | Toyohashi University of Technology |
| 3rd Author's Name | Yoshiaki TADOKORO |
| 3rd Author's Affiliation | Toyohashi University of Technology |
| Date | 2002/2/25 |
| Paper # | CAS2001-106 |
| Volume (vol) | vol.101 |
| Number (no) | 665 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |