track-via-missile

Japanese: track-via-missile(英語表記)trackviamissile
track-via-missile

…(a) Command Guidance In command guidance, where a missile is guided from the outside after launch, the target and missile are usually located by ground radar, and the missile is directed to the target by a command from the ground. This has the disadvantages that the accuracy of the location deteriorates over long distances, and while the guidance device mounted on the missile is simple and inexpensive, the ground device is large, large, and complex, and it is not possible to intercept multiple targets at the same time. In addition, the target is illuminated from the ground, the missile detects the reflected wave from the target and transmits the target position to the ground, and the hit position is calculated on the ground and the missile is command-guided, using TVM (track-via-missile), a device that does not lose accuracy even at long distances, is adopted in the Patriot developed in the United States. In addition, to miniaturize and consolidate ground devices and deal with multiple targets at the same time, phased array radar has appeared, which electronically scans electromagnetic beams to search for and track multiple targets and missiles simultaneously with a single radar. …

*Some of the terminology that mentions "track-via-missile" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…(a)指令誘導 ミサイルを,発射後外部から誘導する指令誘導では,通常,地上のレーダーで目標とミサイルを標定し,地上からの指令でミサイルを目標に向けて飛翔させるので,遠距離では標定精度が悪くなることと,ミサイル搭載誘導装置は簡単で安価だが,地上装置は大規模,大型,複雑になり,また同時に多数目標を要撃できない欠点がある。なお,地上から目標を照射し,目標からの反射波をミサイルが検知して目標位置を地上に伝送し,地上で命中位置を計算してミサイルを指令誘導するTVM(track‐via‐missile,ミサイル経由追尾と訳す)により,遠距離でも精度を落とさないくふうが,アメリカで開発された〈ペトリオット〉に採用されている。また地上装置の小型化,集約化,同時多目標対処については,電磁ビームを電子的に走査して,多数の目標とミサイルを1基のレーダーで同時に捜索し追尾するフェーズドアレー・レーダーが出現している。…

※「track-via-missile」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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