THE LQG/LTR PROCEDURE FOR MULTIVARIABLE FEEDBACK-CONTROL DESIGN

被引：297

作者：

STEIN, G ^{[1
]}

ATHANS, M ^{[1
]}

机构：

[1] MIT,ELECT ENGN & COMP SCI,CAMBRIDGE,MA 02139

来源：

IEEE TRANSACTIONS ON AUTOMATIC CONTROL | 1987年 / 32卷 / 02期

关键词：

CONTROL SYSTEMS; LINEAR - MATHEMATICAL TECHNIQUES - Transfer Functions;

D O I：

10.1109/TAC.1987.1104550

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A tutorial overview of the LQG/LTR (linear quadratic Gaussian synthesis with loop transfer recovery) design procedure is provided for linear multivariable feedback systems. LQG/LTR is interpreted as the solution of a specific weighted H**2 -tradeoff between transfer functions in the frequency domain. Properties of this solution are examined for both minimum-phase and nonminimum-phase systems. This leads to a formal weight augmentation procedure for the minimum-phase case that essentially permits arbitrary specification of system sensitivity functions in terms of the weights. While such arbitrary specifications are not possible for nonminimum-phase problems, a direct relationship between weights and sensitivities is developed for nonminimum-phase single-input, single-output/multi-input, multi-output cases which guides the weight selection process.

引用

页码：105 / 114

页数：10

共 25 条

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