| Presentation | 2000/3/16 Error Spectrum Shaping in Closed Systems with State-Estimate Feedback Takao Hinamoto, Shunsuke Yamamoto, |
|---|---|
| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper considers the problem of designing error feedback coeffients that reduce the output roundoff noise in the closed-loop system with a state-estimate feedback controller implemented by fixed-point arithmetic subject to l_2 scaling. First, we describe the closed-loop system with a state-estimate feedback controller. Next, after incorporating an error feedback into the state-estimate feedback controller, the optimal closed-form solutions of error feedback coefficients is presented to minimize the output ronndoff noise of the closed-loop system. Then, a straightforward method is developed to determine the error feedback diagonal matrix that reduces the output roundoff noise of the closed-loop system, when a state-estimate feedback controller is realized in the input-balanced form. Moreover, under the assnmption that all the diagonal elements are equal, some conditions are explored which provide a smaller output roundoff noise than that of the optimal state-estimate feedback controller realization with minimum output roundoff noise, constructed by the appropriate choice of the coordinate transformation. Finally, a numerical example is given to illustrate the utility of the proposed technique. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | state-estimate feedback controller / closed-loop system / roundoff error / fixed point / error feedback / noise reduction scaling |
| Paper # | CAS99-121,DSP99-191,CS99-162 |
| Date of Issue |
| Conference Information | |
| Committee | DSP |
|---|---|
| Conference Date | 2000/3/16(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 | Digital Signal Processing (DSP) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Error Spectrum Shaping in Closed Systems with State-Estimate Feedback |
| Sub Title (in English) | |
| Keyword(1) | state-estimate feedback controller |
| Keyword(2) | closed-loop system |
| Keyword(3) | roundoff error |
| Keyword(4) | fixed point |
| Keyword(5) | error feedback |
| Keyword(6) | noise reduction scaling |
| 1st Author's Name | Takao Hinamoto |
| 1st Author's Affiliation | Faculty of Engineering, Hiroshima University() |
| 2nd Author's Name | Shunsuke Yamamoto |
| 2nd Author's Affiliation | Faculty of Engineering, Hiroshima University |
| Date | 2000/3/16 |
| Paper # | CAS99-121,DSP99-191,CS99-162 |
| Volume (vol) | vol.99 |
| Number (no) | 695 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |