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  2. Radar beacon - Wikipedia

    en.wikipedia.org/wiki/Radar_beacon

    Radar beacon. Racon signal as seen on a radar screen. This beacon receives using sidelobe suppression and transmits the letter "Q" in Morse code near Boston Harbor (Nahant) 17 January 1985. Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) [1 ...

  3. Laser designator - Wikipedia

    en.wikipedia.org/wiki/Laser_designator

    Laser designator. A laser designator is a laser light source which is used to designate a target. Laser designators provide targeting for laser-guided bombs, missiles, or precision artillery munitions, such as the Paveway series of bombs, AGM-114 Hellfire, or the M712 Copperhead round, respectively. When a target is marked by a designator, the ...

  4. High-frequency direction finding - Wikipedia

    en.wikipedia.org/wiki/High-frequency_direction...

    High-frequency direction finding, usually known by its abbreviation HF/DF or nickname huff-duff, is a type of radio direction finder (RDF) introduced in World War II.

  5. Researchers say they've built an AI-powered sarcasm detector

    www.aol.com/finance/researchers-theyve-built-ai...

    A group of researchers from the University of Groningen announced they've built an AI model capable of detecting sarcasm in video clips from TV sitcoms and other types of content.

  6. AN/TPQ-37 Firefinder radar - Wikipedia

    en.wikipedia.org/wiki/AN/TPQ-37_Firefinder_radar

    The AN/TPQ-37 is an electronically steered radar, meaning the radar does not actually move while in operation. The radar scans a 90-degree sector for incoming rocket, artillery and mortar fire. Upon detecting a possible incoming round, the system verifies the contact before initiating a track sequence, continuing to search for new targets.

  7. Coincidence rangefinder - Wikipedia

    en.wikipedia.org/wiki/Coincidence_rangefinder

    A coincidence rangefinder or coincidence telemeter is a type of rangefinder that uses the principle of triangulation and an optical device to allow an operator to determine the distance to a visible object. There are subtypes split-image telemeter, inverted image, or double-image telemeter with different principles how two images in a single ...

  8. Rangefinder - Wikipedia

    en.wikipedia.org/wiki/Rangefinder

    A rangefinder (also rangefinding telemeter, depending on the context) is a device used to measure distances to remote objects. Originally optical devices used in surveying, they soon found applications in other fields, such as photography, the military, and space travel. They were especially useful for finding the range of a target, such as in ...

  9. Finderscope - Wikipedia

    en.wikipedia.org/wiki/Finderscope

    A finderscope is an accessory sighting device used in astronomy and stargazing, typically a small auxiliary refracting telescope / monocular mounted parallelly on a larger astronomical telescope along the same line of sight. The finderscope usually has a much smaller magnification than the main telescope, thus providing a larger field of view ...

  10. Lidar - Wikipedia

    en.wikipedia.org/wiki/Lidar

    Lidar ( / ˈlaɪdɑːr /, also LIDAR, LiDAR or LADAR, an acronym of "light detection and ranging" [1] or "laser imaging, detection, and ranging" [2]) is a method for determining ranges by targeting an object or a surface with a laser and measuring the time for the reflected light to return to the receiver.

  11. Viewfinder - Wikipedia

    en.wikipedia.org/wiki/Viewfinder

    Viewfinder. In photography, a viewfinder is a small window the photographer looks through to see what a photo will look like before they capture it. [1] Some viewfinders see directly through the lens, whereas others are separate and show an approximation of what the photo will look like. The second type is much simpler to design, but creates a ...