What is the history of radar identification system?

Radar IFF system appeared at the beginning of World War II. 1939, Britain successfully developed the first IFF, called MK ⅰ. After many improvements, MK ⅱ, MK ⅲ, MK ⅴ and other models were developed, which played a role in the war.

After World War II, the United States developed the X-type on the basis of MK ⅴ. This is a Zhong Junmin compatible system, which can be used not only for military identification of enemy targets, but also for air traffic control of civil aviation. 1954, adopted by ICAO.

Since 1960s, the radar IFF system has been improved, which has solved the problems of antenna sidelobe interference, interference and confusion between devices in the system. After coding and control by microprocessor, the confidentiality and automation have been improved. Some countries have also developed integrated communication, navigation and identification systems to improve identification reliability and equipment utilization; The research on other identification systems such as non-cooperation has also made progress.

Further improving the ability of anti-deciphering, anti-jamming and friend-or-foe identification under the condition of dense multi-targets is still a key issue to be solved in the development of radar friend-or-foe identification system.

China 1 10 ultra-long range precision tracking radar

Since 1950s, foreign countries have started to develop ballistic missile weapons. In order to actively defend and detect invading targets thousands of miles away, China must develop ultra-long-range early warning and tracking radar, detect and track targets in outer space, and establish ballistic missile early warning (space surveillance) system and defense system. 1958 proposes to develop ultra-long range radar.

Shen, an expert in radar technology, undertook this arduous task. He led the engineers and technicians of 14 Institute to enter the engineering design stage from the pre-research, breaking through a number of key technologies.

1959, he organized and developed the 1 10 simulation test radar, which received the strong echo of the moon 380,000 kilometers away from the earth for the first time, and achieved initial results in observing outer space targets.

From 1965 to 1970, the research on Cassegrain monopulse antenna, pulse compression, pulse Doppler velocimetry, parametric amplifier, advanced computer application, large antenna structure and turntable has been carried out. The breakthrough of the above new technology has made preliminary engineering preparations for the development of ultra-long-range 1 10 tracking radar, and entered the stage of engineering implementation.

1977, China's first ultra-long-range tracking radar equipment unit. It can track non-cooperative outer space targets more than 2,000 kilometers away, and has repeatedly carried out the task of tracking and measuring foreign outer space targets in China's intercontinental rocket and satellite launch projects. The successful development of 1 10 radar makes China the third country in the world with this kind of large radar.