| Presentation | 1998/10/15 Parllel Radix-4 FFT Implementation Using SIMD Multimedia Instructions Kouhei NADEHARA, Takashi MIYAZAKI, Ichiro KURODA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this report, an implementation and evaluation of the fast radix-4 complex FFT using 4-parallel SIMD instructions are presented. Four radix-4 butterflies are calculated in parallel following the same signal flow at all stages by loading consecutive 4 elements into a register. At the last stage, every 4 elements is packed into a register and calculated in parallel. The implementation result on the V830R processor, which has a 4-parallel SIMD-type multimedia instuction set, achieves 35% less clock count than the conventional inplementation. Multiply-accumulate instructions with symmetrical rounding introduced to the V830R processor are effective to maintain FFT accuracy. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | SIMD Instruction / FFT / Fast Fourier Transform / Rounding / Error |
| Paper # | DSP98-100,ICD98-187,CPSY98-102 |
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| Conference Information | |
| Committee | DSP |
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| Conference Date | 1998/10/15(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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| Assistant | |
| 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) | Parllel Radix-4 FFT Implementation Using SIMD Multimedia Instructions |
| Sub Title (in English) | |
| Keyword(1) | SIMD Instruction |
| Keyword(2) | FFT |
| Keyword(3) | Fast Fourier Transform |
| Keyword(4) | Rounding |
| Keyword(5) | Error |
| 1st Author's Name | Kouhei NADEHARA |
| 1st Author's Affiliation | C&C Media Research Laboratories, NEC Corporation() |
| 2nd Author's Name | Takashi MIYAZAKI |
| 2nd Author's Affiliation | C&C Media Research Laboratories, NEC Corporation |
| 3rd Author's Name | Ichiro KURODA |
| 3rd Author's Affiliation | C&C Media Research Laboratories, NEC Corporation |
| Date | 1998/10/15 |
| Paper # | DSP98-100,ICD98-187,CPSY98-102 |
| Volume (vol) | vol.98 |
| Number (no) | 318 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |