| Presentation | 2000/6/16 The Use of Error Feedforward for Error Spectrum Shaping in 2-D Separable-Denominator Digital Filters Takao HINAMOTO, Masayoshi NAKAMOTO, Keisuke HIGASHI, |
|---|---|
| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Due to finite word length effects, the degradations of filter characteristics occur in the implementation of recursive digital filters. One of them is a filter output noise caused by roundoff errors in the product quantization. This kind of noise can be reduced by applying an error-spectrum-shaping technique. The error spectrum shaping is usually based on the feedback of the roundoff errors and rarely uses its feedforward. This paper develops an error-spectrum-shaping technique in two-dimensional separable-denominator digital filters. The proposed technique is bsed on not only the feedback but also the feedforward of the roundoff errors. Here, powers-of-two coefficients are also used in the error feedback and feedforward in order to reduce the implementation cost. Finally, a numerical example is given to illustrate the utility of the proposed technique. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | 2-D separable-denominator digital filter / error spectrum shaping / error feedforward / noise reduction |
| Paper # | CAS2000-26,VLD2000-35,DSP2000-47 |
| Date of Issue |
| Conference Information | |
| Committee | CAS |
|---|---|
| Conference Date | 2000/6/16(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Circuits and Systems (CAS) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | The Use of Error Feedforward for Error Spectrum Shaping in 2-D Separable-Denominator Digital Filters |
| Sub Title (in English) | |
| Keyword(1) | 2-D separable-denominator digital filter |
| Keyword(2) | error spectrum shaping |
| Keyword(3) | error feedforward |
| Keyword(4) | noise reduction |
| 1st Author's Name | Takao HINAMOTO |
| 1st Author's Affiliation | Faculty of Engineering, Hiroshima University() |
| 2nd Author's Name | Masayoshi NAKAMOTO |
| 2nd Author's Affiliation | Faculty of Engineering, Hiroshima University |
| 3rd Author's Name | Keisuke HIGASHI |
| 3rd Author's Affiliation | Faculty of Engineering, Hiroshima University |
| Date | 2000/6/16 |
| Paper # | CAS2000-26,VLD2000-35,DSP2000-47 |
| Volume (vol) | vol.100 |
| Number (no) | 119 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |