| Presentation | 1997/3/7 Sample Delay Reduction of Linear Phase IIR Filters by Shortening Section Length of Signals Syoichiro Miyase, Shigenori Tomiyama, Tsuyoshi Takebe, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A technique for realizing linear phase IIR filters has proposed by Powell and Chau. This technique is constructed by the following 3 subtechniques to realize a real-time recursive implementation of noncausal transfer function: 1) Approximating the IIR filter's impulse response length to a finite length L, 2) Dividing input and output signals of IIR filter into some sections with length L and operating time reversal in real-time for each section, and 3) Performing time regulation overlap-additionn for filter responses of consecutive two sections using a two-path IIR filter. However, 2) results in an L sample delay for each signal block, and an L+1 sample delay arises from 3). Thus, this technique incorporates a total of 3L+1 sample delay. In this paper, taking note of sample delay in 2), we propose a reduction of sample delay by shortening section length of signals by a integer factor (where shortened section length is also an integer length. This proposal can be reduced sample delay generated in this realization. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | IIR Filter / Linear Phase / Time Reversal / Real-Time Implementation / Overlap-Add Method |
| Paper # | CAS96-105,DSP96-156,CS96-161 |
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| Conference Information | |
| Committee | DSP |
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| Conference Date | 1997/3/7(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) | Sample Delay Reduction of Linear Phase IIR Filters by Shortening Section Length of Signals |
| Sub Title (in English) | |
| Keyword(1) | IIR Filter |
| Keyword(2) | Linear Phase |
| Keyword(3) | Time Reversal |
| Keyword(4) | Real-Time Implementation |
| Keyword(5) | Overlap-Add Method |
| 1st Author's Name | Syoichiro Miyase |
| 1st Author's Affiliation | Department of Communications Engineering, School of Engineering, Tokai University() |
| 2nd Author's Name | Shigenori Tomiyama |
| 2nd Author's Affiliation | Department of Communications Engineering, School of Engineering, Tokai University |
| 3rd Author's Name | Tsuyoshi Takebe |
| 3rd Author's Affiliation | Department of Information Engineering, Kanazawa institute of Technology |
| Date | 1997/3/7 |
| Paper # | CAS96-105,DSP96-156,CS96-161 |
| Volume (vol) | vol.96 |
| Number (no) | 552 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |