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Distance measuring equipment. In aviation, distance measuring equipment (DME) is a radio navigation technology that measures the slant range (distance) between an aircraft and a ground station by timing the propagation delay of radio signals in the frequency band between 960 and 1215 megahertz (MHz). Line-of-visibility between the aircraft and ...
An example of slant range is the distance to an aircraft flying at high altitude with respect to that of the radar antenna. The slant range (1) is the hypotenuse of the triangle represented by the altitude of the aircraft and the distance between the radar antenna and the aircraft's ground track (point (3) on the earth directly below the aircraft).
In Indonesia, however, there is a clear distinction between "Malay language" (bahasa Melayu) and "Indonesian" (bahasa Indonesia). Indonesian is the national language which serves as the unifying language of Indonesia; despite being a standardized form of Malay, it is not referred to with the term "Malay" in common parlance. [ 17 ]
Indonesia: Landing craft utility: 2500 DWT craft 2 [243] Under Construction by PT MOS Karimun. ADRI-LI class Indonesia: Landing craft utility: 1500 DWT craft 2 [243] Built by PT Daya Radar Utama. [244] ADRI-L class Indonesia: Landing craft utility: 1200 DWT craft 1 [243] Built by Dok & Perkapalan Kodja Bahari (Persero). [245] ADRI-XLVIII class ...
Calculations for the "slant range" (range between the antenna's phase center and the point on the ground) are done for every azimuth time using coordinate transformations. Azimuth Compression is done after the previous step. Step 5 and 6 are repeated for every pixel, to cover every pixel, and conduct the procedure on every sub-aperture.
In photography, angle of view (AOV) [1] describes the angular extent of a given scene that is imaged by a camera. It is used interchangeably with the more general term field of view. It is important to distinguish the angle of view from the angle of coverage, which describes the angle range that a lens can image.
The reason why telescopic sights intended for short range use are often equipped with parallax compensation is that at short range (and at high magnification) parallax errors become proportionally more noticeable. A typical telescopic sight objective lens has a focal length of 100 millimeters (3.9 in). An optically ideal 10× sight in this ...
The Bukit Barisan or the Barisan Mountains are a mountain range on the western side of Sumatra, Indonesia, covering nearly 1,700 km (1,050 mi) from the north to the south of the island. The Bukit Barisan range consists primarily of volcanoes shrouded in dense jungle cover, including Sumatran tropical pine forests on the higher slopes. [ 1]