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Chinese Military Radar

Air defense radar is military electronic equipment that uses electromagnetic waves to detect targets. The electromagnetic waves it emits illuminate the target and receive its echoes, thereby discovering the target and determining the position, direction and speed of movement, and other characteristics.

Fire control radar refers to the radar used to aim and control the gun or interceptor missile. Fire control is a process of comprehensive and effective use of the entire weapon system through a computer system. Fire control issues are generally mentioned only on integrated weapon platforms such as airplanes and warships (all carrying multiple concurrent weapons). For a single soldier or a system with only one main weapon (no concurrent system), there is no fire control, and it is generally called a guidance system. Fire control radar is the eyes and ears of the weapon system. It can realize early warning scanning search through radar, obtain the radar information of the defense zone, and comprehensively analyze the information, classify the target, group it and give the threat coefficient to the unit, propose weapon selection and target attack Suggestions. Of course, it depends on the operator whether or not the analysis is done according to the fire control system. After the operator obtains the permission to fire, he will start the attack according to the automatically or manually selected attack method or weapon type. At this time, the radar will first lock the specific target.

Since the 21st century, ground-based air defense radar technology has continued to mature. In the ground air defense radar systems of various countries , various technical systems such as active phased array, three-coordinates, and over-the-horizon line of sight have formed a trend of blooming. Moreover, in the face of more and more aerial threats, countries spare no expense to develop and equip various long-range warning radars, guidance radars, target indication radars, short-range low-level surveillance and blinding radars to create powerful and seamless ground air defense radars The internet. Because of its wide range of uses, air defense radars can be divided into strategic air defense surveillance radars and tactical air defense radars. The former is used for long-range and ultra-long-range surveillance of ballistic missiles and high-speed threat targets in the air. The latter is used for mid-range and short-range air surveillance, and some long-range surveillance radars fall into this category.

In order to deal with the four major threats of future electronic interference, anti-radiation missiles, low-altitude penetration and stealth aircraft, ground-based air defense surveillance radars must innovate and make breakthroughs in order to develop new systems and new technologies in order to continue to survive in increasingly complex combat environments.

Designers have gradually abandoned the parabolic reflector antenna and adopt a multi-functional phased array system in an all-round way, which not only improves the radar's combat range and expands the number of radar targets, but also enters a new level of radar survivability and reliability.

Low-frequency air defense radars are gaining popularity again. Among the four major threats of modern radar, anti-radiation missiles and stealth aircraft are undoubtedly the biggest trouble. Due to the wavelength characteristics of the low-frequency radar, the tracking accuracy of the anti-radiation missile is greatly reduced, and the stealth effect of the stealth aircraft is also greatly reduced. Therefore, there has been a tendency to pay attention to the development of low-frequency air defense radars in foreign countries in recent years.