. . . "1109274568"^^ . . "Detection"@en . . . . . . "2074"^^ . . . . . . . "In general, detection is the action of accessing information without specific cooperation from with the sender. In the history of radio communications, the term \"detector\" was first used for a device that detected the simple presence or absence of a radio signal, since all communications were in Morse code. The term is still in use today to describe a component that extracts a particular signal from all of the electromagnetic waves present. Detection is usually based on the frequency of the carrier signal, as in the familiar frequencies of radio broadcasting, but it may also involve filtering a faint signal from noise, as in radio astronomy, or reconstructing a hidden signal, as in steganography."@en . . 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"Detectie is het selectief waarnemen van een signaal of ander natuurkundig verschijnsel, dikwijls te midden van andere signalen, die (achtergrond)ruis genoemd worden. Het waarneeminstrument zelf wordt de detector genoemd. In de radiotechniek wordt de term detecteren ook gebruikt voor demodulatie van het radiosignaal, dat wil zeggen het terughalen van het erop gemoduleerde audio- of videosignaal."@nl . 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"In general, detection is the action of accessing information without specific cooperation from with the sender. In the history of radio communications, the term \"detector\" was first used for a device that detected the simple presence or absence of a radio signal, since all communications were in Morse code. The term is still in use today to describe a component that extracts a particular signal from all of the electromagnetic waves present. Detection is usually based on the frequency of the carrier signal, as in the familiar frequencies of radio broadcasting, but it may also involve filtering a faint signal from noise, as in radio astronomy, or reconstructing a hidden signal, as in steganography. In optoelectronics, \"detection\" means converting a received optical input to an electrical output. For example, the light signal received through an optical fiber is converted to an electrical signal in a detector such as a photodiode. In steganography, attempts to detect hidden signals in suspected carrier material is referred to as steganalysis. Steganalysis has an interesting difference from most other types of detection, in that it can often only determine the probability that a hidden message exists; this is in contrast to the detection of signals which are simply encrypted, as the ciphertext can often be identified with certainty, even if it cannot be decoded. In the military, detection refers to the special discipline of reconnaissance with the aim to recognize the presence of an object in a location or ambiance. Finally, the art of detection, also known as following clues, is the work of a detective in attempting to reconstruct a sequence of events by identifying the relevant information in a situation."@en . "Detectie"@nl . . . . . . . "Detectie is het selectief waarnemen van een signaal of ander natuurkundig verschijnsel, dikwijls te midden van andere signalen, die (achtergrond)ruis genoemd worden. Het waarneeminstrument zelf wordt de detector genoemd. Er bestaan detectoren voor elektromagnetische grootheden, deeltjes- en ioniserende straling. Verder zijn er detectoren die op geluid of trillingen reageren. Een detector is vrijwel altijd opgenomen in een systeem dat de te detecteren grootheid opvangt en naar de detector leidt en tevens de gedetecteerde grootheid geschikt maakt voor verdere verwerking. Dit complete systeem wordt aangeduid met sensor. Beide termen worden echter ook door elkaar gebruikt. In de radiotechniek wordt de term detecteren ook gebruikt voor demodulatie van het radiosignaal, dat wil zeggen het terughalen van het erop gemoduleerde audio- of videosignaal."@nl . . . . . . . . . . "42935"^^ . . . "\u0627\u0644\u0627\u0643\u062A\u0634\u0627\u0641"@ar . .