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Survey of the development for quantitative feedback theory. (Chinese. English summary) Zbl 1187.93045

Summary: Quantitative Feedback Theory (QFT) is a robust control theory based on frequency domain. It can be used to control single variable linear/nonlinear and multivariable linear/nonlinear systems with high uncertainty. In this paper, the basic theory, designing process and characteristic of QFT are described. The development of QFT is then summarized in several fields; increasing performance, robust stability research, automatic design and its applications. Some theory results are also given. Finally, the future development is discussed.

MSC:

93B52 Feedback control
93C80 Frequency-response methods in control theory
93B35 Sensitivity (robustness)
93C35 Multivariable systems, multidimensional control systems
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