Title :
Process control in a high-noise environment using a limited number of measurements
Author :
Barajas, Leandro G. ; Egerstedt, Magnus B. ; Kamen, Edward W. ; Goldstein, Alex
Author_Institution :
Sch. of Electr. & Comput Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
In this paper, we develop a hybrid control algorithm that produces control values for processes where only a limited number of function evaluations are available for the control law generation. This situation arises, for example, in stencil printing processes in printed circuit board manufacturing, where the cost associated with multiple function evaluations is prohibitive: The proposed control algorithm is given by a modified version of a constrained conjugated-gradient method, transitioned into a windowed-smoothed block-form of the least-squares affine estimator.
Keywords :
algorithm theory; conjugate gradient methods; function evaluation; least squares approximations; printed circuit manufacture; printing industry; process control; constrained conjugated gradient method; control law generation; control values; high noise environment; hybrid control algorithm; least square affine estimator; multiple function evaluations; printed circuit board manufacturing; process control; stencil printing processes; windowed smoothed block form; Cost function; Electric variables measurement; Hybrid power systems; Industrial control; Manufacturing processes; Printed circuits; Printing; Process control; Production; Robust control;
Conference_Titel :
American Control Conference, 2003. Proceedings of the 2003
Print_ISBN :
0-7803-7896-2
DOI :
10.1109/ACC.2003.1239084
