The origin of radar
2022-04-25
The emergence of radar is due to the urgent need for a radar (Technology) that can detect metal objects in the air during the war between Britain and Germany during World War I, which can help search for German aircraft in the anti air raid war. During World War II, radar technology with the functions of ground to air, air to ground (search) bombing, air to air (interception) fire control and friend or foe identification has appeared.
After World War II, the radar developed new radar systems such as monopulse angle tracking, pulse Doppler signal processing, high-resolution synthetic aperture and pulse compression, combined system combined with friend or foe identification, automatic fire control system combined with computer, terrain avoidance and terrain following, passive or active phase array, frequency agility, multi-target detection and tracking.
Later, with the scientific progress in various fields such as microelectronics and the continuous development of radar technology, its connotation and research content are constantly expanding. The detection means of radar has developed from the former only radar detector to the fusion and cooperation of infrared light, ultraviolet light, laser and other optical detection means.
The simultaneous multi-function capability of contemporary radar makes the battlefield commander scan the target under various search / tracking modes and automatically correct the interference error, and most of the control functions are completed within the system.
Automatic target recognition can make the weapon system play its role to the greatest extent. The integrated radar system with battlefield friend or foe recognition capability such as air early warning aircraft and jstars has actually become the information command center in the future battlefield.
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