Title :
Internal model-based LQG/H∞ design of robust active noise controllers for an acoustic duct system
Author :
Lin, Jong-Yih ; Luo, Zi-Liang
Author_Institution :
Dept. of Mech. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fDate :
9/1/2000 12:00:00 AM
Abstract :
In this paper, a method of linear quadratic Gaussian (LQG) control with an H∞ performance bound is modified for a robust active noise control design of an acoustic duct system. This H∞-constraint LQG (LQG/H∞) method is incorporated with an internal model principle to design robust internal model-based active noise controllers to attenuate a narrow-band disturbance noise in a duct. Computer simulation results show an enhanced robust control performance of this internal model-based LQG/H ∞ design with respect to the variation of the disturbance noise frequency and demonstrate a global control performance along the duct. Experimental results further demonstrate its global performance robustness capability and support the feasibility of the proposed internal model-based LQG/H∞ design method
Keywords :
H∞ control; active noise control; control system synthesis; linear quadratic Gaussian control; model reference adaptive control systems; robust control; H∞ control; H∞ performance bound; LQG control; acoustic duct system; disturbance noise frequency variation; global performance robustness capability; internal model-based LQG/H∞ design; linear quadratic Gaussian control; narrow-band disturbance noise attenuation; robust active noise controllers; robust internal model-based active noise controllers; Acoustic noise; Active noise reduction; Computer simulation; Control design; Control systems; Ducts; Gaussian noise; Narrowband; Noise robustness; Robust control;
Journal_Title :
Control Systems Technology, IEEE Transactions on
