…(c) Pure pursuit course, which always points to the target’s current position, is a simple method also called a dog curve, which is the same as the course a hunting dog takes to chase a bear, but it requires a sharp turn at the end and is not suitable for high-speed targets. (d) Proportional navigation, which corrects the missile’s trajectory angle in proportion to the time change in the line of sight from the missile to the target, is commonly used in homing guided missiles because it can obtain and maintain a rendezvous path even without distance or speed information. A simplified diagram of each guided flight path is shown in Figure 5. … *Some of the terminology explanations that mention "proportional navigation" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…(c)つねに目標の現在位置に指向する単純追跡経路pure pursuit courseは猟犬が熊を追うときのコースと同じで犬曲線とも呼ばれる単純な方式であるが,終末に急旋回が要求され,高速目標には適さない。(d)ミサイルから目標を見込む目視線の時間変化に比例してミサイルの経路角を修正する比例航法proportional navigationは,距離,速度情報がなくとも会合経路が得られ,またこれを維持できるので,ホーミング誘導ミサイルに通常用いられている。各誘導飛翔経路の略図を図5に示す。… ※「proportional navigation」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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