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一、前言基于状态空间法的现代控制论在解决“空间”的航天技术上所起的作用是不容置疑的,然而,在解决“地面”的工业过程的控制问题时,却遇到不少问题,欧美的一些有影响的学者甚至认为现代控制论对待工业过程的设计几乎是无能为力的(这可能是偏见)。例如,在现代控制论中卓有成效的最佳控制问题,由于“地面”的情况比较复杂,难于提出恰如其分的二次型性能指标,因而它的应用受到了严重的限制。另一方面,基于频率法的单变量系统的古典控制论却有着不可忽视的优点。在七十年代后期,英国的H.
I. INTRODUCTION The role of modern cybernetics in state space law in space technology solving the “space” is undeniable. However, many problems have been encountered in solving the control of “ground” industrial processes Some influential scholars in Europe and the United States even think that modern cybernetics can hardly treat the design of industrial processes (which may be prejudice). For example, the most effective control problem in modern cybernetics has been severely limited in its application due to the complex nature of the “ground” and its difficulty in proposing quadratic performance indicators that are appropriate. On the other hand, the classical cybernetics of univariate systems based on the frequency method has its own advantages that can not be ignored. In the late seventies, the British H.