Abstract
This paper investigates the performance and stability of a virtual microphone feedback controller for local control of sound through theoretical analysis and simulations. A novel method to design a stable feedback controller for the local control system is also presented in this paper. The local control system is designed to attenuate a broadband disturbance at a point near the listener's ear, i.e. the virtual microphone, rather than at the control microphone, i.e. the physical microphone. The results showed that if a good performance was to be achieved the controller would be unstable. This is because the magnitude of the response of the virtual plant is lower than that of the physical plant. The feedback controller in this work is designed to minimize the noise at the virtual microphone, with a virtual plant response used in the performance objective. However the physical plant is used in the stability constraint. Therefore there is a trade-off between the performance and controller stability.
| Original language | English |
|---|---|
| Title of host publication | Recent Trends in Materials and Mechanical Engineering Materials, Mechatronics and Automation |
| Pages | 2060-2064 |
| Number of pages | 5 |
| DOIs | |
| Publication status | Published - 2011 Jun 3 |
| Event | 2011 International Conference on Recent Trends in Materials and Mechanical Engineering, ICRTMME 2011 - Shenzhen, China Duration: 2011 Jan 27 → 2011 Jan 28 |
Publication series
| Name | Applied Mechanics and Materials |
|---|---|
| Volume | 55-57 |
| ISSN (Print) | 1660-9336 |
| ISSN (Electronic) | 1662-7482 |
Other
| Other | 2011 International Conference on Recent Trends in Materials and Mechanical Engineering, ICRTMME 2011 |
|---|---|
| Country | China |
| City | Shenzhen |
| Period | 11-01-27 → 11-01-28 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Engineering(all)
Cite this
}
Stability analysis and performance evaluation of a feedback controller for local control of sound. / Tseng, Wen Kung.
Recent Trends in Materials and Mechanical Engineering Materials, Mechatronics and Automation. 2011. p. 2060-2064 (Applied Mechanics and Materials; Vol. 55-57).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Stability analysis and performance evaluation of a feedback controller for local control of sound
AU - Tseng, Wen Kung
PY - 2011/6/3
Y1 - 2011/6/3
N2 - This paper investigates the performance and stability of a virtual microphone feedback controller for local control of sound through theoretical analysis and simulations. A novel method to design a stable feedback controller for the local control system is also presented in this paper. The local control system is designed to attenuate a broadband disturbance at a point near the listener's ear, i.e. the virtual microphone, rather than at the control microphone, i.e. the physical microphone. The results showed that if a good performance was to be achieved the controller would be unstable. This is because the magnitude of the response of the virtual plant is lower than that of the physical plant. The feedback controller in this work is designed to minimize the noise at the virtual microphone, with a virtual plant response used in the performance objective. However the physical plant is used in the stability constraint. Therefore there is a trade-off between the performance and controller stability.
AB - This paper investigates the performance and stability of a virtual microphone feedback controller for local control of sound through theoretical analysis and simulations. A novel method to design a stable feedback controller for the local control system is also presented in this paper. The local control system is designed to attenuate a broadband disturbance at a point near the listener's ear, i.e. the virtual microphone, rather than at the control microphone, i.e. the physical microphone. The results showed that if a good performance was to be achieved the controller would be unstable. This is because the magnitude of the response of the virtual plant is lower than that of the physical plant. The feedback controller in this work is designed to minimize the noise at the virtual microphone, with a virtual plant response used in the performance objective. However the physical plant is used in the stability constraint. Therefore there is a trade-off between the performance and controller stability.
UR - http://www.scopus.com/inward/record.url?scp=79957711133&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79957711133&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMM.55-57.2060
DO - 10.4028/www.scientific.net/AMM.55-57.2060
M3 - Conference contribution
AN - SCOPUS:79957711133
SN - 9783037850992
T3 - Applied Mechanics and Materials
SP - 2060
EP - 2064
BT - Recent Trends in Materials and Mechanical Engineering Materials, Mechatronics and Automation
ER -