...When the control input is known and the value of the state vector at a certain time can be uniquely determined from the output observed over an appropriate time interval, the dynamical system is said to be observable. These two concepts were introduced by Kalman RE around 1960, and it was pointed out that they are dual to each other. Later, it was discovered that the structure of linear dynamical systems can be clarified from these basic properties, and a theoretical framework called linear system theory was established. In current control theory, the controlled object is modeled using this linear system theory, and a method of designing a control system based on this is discussed, which is called the state space approach. ... *Some explanations of terms that refer to "linear system theory" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…また制御入力は既知として,適当な時間区間にわたって出力を観測した結果からある時刻の状態ベクトルの値を一意的に決めることができるとき,このダイナミカルシステムは可観測observableであるといわれる。これら二つの概念は1960年前後にカルマンR.E.Kalmanによって導入され,互いに双対の関係にあることが指摘されたが,後にこれらの基本的な性質から線形ダイナミカルシステムの構造を明確化しうることがわかって,ここに線形システム理論linear system theoryと呼ばれる理論体系が確立されるに至った。 現在の制御理論では,制御対象をこのような線形システム理論でモデル化し,これに基づいて制御系を設計する方法を論じており,これを状態空間法state space approachという。… ※「linear system theory」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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