定量反馈理论是一种基于频域的鲁棒控制理论,可以用于具有高度不确定性的单变量线性/非线性系统、多变量线性/非线性系统控制器设计.本文概述了定量反馈理论的基本原理、设计过程以及特点.总结了近年来QFT在提高系统性能、鲁棒稳定性、自动设计以及应用等方面的最新研究进展,并且给出了一些已有的理论应用成果.最后讨论了进一步的研究方向.
Quantitative feedback theory (QPT) 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 QPT are described. The development of QPT 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.