...It has also become an indispensable device in the fields of space development and remote sensing. Meanwhile, in terms of radar technology, in the 1950s, technologies that detect and use the amplitude and phase information of reflected waves, called coherent radars, such as SAR (short for synthetic aperture radar) and MTI (short for moving target indicator), which will be described later, were put to practical use. In the 1960s, digital signal processing technology was developed, and OTH (short for over the horizon) radar, which uses the reflection of shortwave radio waves by the ionosphere, was put to practical use. *Some of the terminology that mentions "MTI" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…また,宇宙開発やリモートセンシングの分野などにおいても欠くことのできない装置となっている。 一方,レーダー技術の面では,1950年代に入って後述するSAR(synthetic aperture radarの略),MTI(moving target indicatorの略)などのコヒーレントレーダーといわれる反射波の振幅および位相情報を検出利用する技術が実用化された。60年代には,信号のディジタル処理技術が開発され,また,電離層による短波帯の電波の反射を利用したOTH(over the horizonの略)レーダーが実用化された。… ※「MTI」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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