【摘要】 本文总结了定量反馈理论（ＱＦＴ）的设计特点、基本原理和设计过程，综合论述了多输入多输出、非最小相位／不稳定、时变／非线性不确定系统的ＱＦＴ研究方法，介绍了ＱＦＴ目前在国外的研究进展及应用情况，并对ＱＦＴ未来发展作了展望更多还原

【Abstract】 This paper summarizes the properties, basic principles, and design process of quantitative feedback theory. The research ideas of QFT applied to MIMO plants, non minimum phase/or unstable plants, time-varying/or nonlinear plants are surveyed. The development and application status of QFT in overseas are introduced and the future developments are overviewed.更多还原