performance index

Japanese: performance index(英語表記)performanceindex
performance index

…Both were established at roughly the same time around 1960. If the controlled object is mathematically expressed as a dynamic process and a certain performance index is determined, then a control system with optimal characteristics under that performance index can be constructed using optimal control theory. This is a method of rigorously optimizing the time behavior of a control system by directly using a time-domain expression of the dynamics of the controlled object, and is the polar opposite of traditional control system design methods that seek to compromise between several design specifications and constraints based on a frequency-domain expression of dynamics. …

*Some of the terminology that refers to "performance index" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…両者は1960年前後にほぼ同時に確立された。 制御対象を動的なプロセスとして数学的に表現し,ある動作指標performance indexを決めれば,最適制御理論を用いてその動作指標の下での最適な特性をもつ制御系を構成することができる。これは制御対象のダイナミクスの時間領域における表現を直接用いて,制御系の時間的な振舞いを厳密に最適化する方法であり,周波数領域におけるダイナミクスの表現にもとづき幾つかの設計仕様と制約条件の間の妥協をはかる伝統的な制御系設計法の対極に立つ考え方である。…

※「performance index」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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