| Presentation | 2014-07-21 A study of chaotic first order delta sigma A/D converter Eri IOKA, Ryou MAKISHIMA, Yasuyuki MATSUYA, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | ΔΣ modulator used as A/D or D/A converts in audio and biosignal processing systems can realize high accuracy However, limit cycle is caused by the input of 0 or DC signal in the ΔΣ modulator, since negative feedback structure is included in the modulator. This limit cycle becomes a factor of unexpected tone (idle tone) appearing on the signal band. In this study, we focus on the chaotic modulation which is used to inhibit the idle tone in the ΔΣ modulator. We investigate performance of a first order ΔΣ modulator considered a integrator leak by using bifurcation and FFT analyses. Moreover, we show that performance of first order ΔΣ modulator can be confirmed by bifurcation structure. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | ΔΣ modulator / integrator leak / chaos modulation / idle tone |
| Paper # | NLP2014-37 |
| Date of Issue |
| Conference Information | |
| Committee | NLP |
|---|---|
| Conference Date | 2014/7/14(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 | Nonlinear Problems (NLP) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A study of chaotic first order delta sigma A/D converter |
| Sub Title (in English) | |
| Keyword(1) | ΔΣ modulator |
| Keyword(2) | integrator leak |
| Keyword(3) | chaos modulation |
| Keyword(4) | idle tone |
| 1st Author's Name | Eri IOKA |
| 1st Author's Affiliation | College of Science and Engineering, Aoyama Gakuin University() |
| 2nd Author's Name | Ryou MAKISHIMA |
| 2nd Author's Affiliation | College of Science and Engineering, Graduated School of Aoyama Gakuin University |
| 3rd Author's Name | Yasuyuki MATSUYA |
| 3rd Author's Affiliation | College of Science and Engineering, Aoyama Gakuin University |
| Date | 2014-07-21 |
| Paper # | NLP2014-37 |
| Volume (vol) | vol.114 |
| Number (no) | 145 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |