South Korea has developed the Up-Graded Cheongung-II Aircraft and Missile Defense System, said to be an equivalent of the US-made Patriot.
The system is built based on technology from the 9M96 missile used on S-350E and S-400 missile systems. It is equipped with multifunction radar to strike aircraft and missiles simultaneously. The system is said to have a 100% accuracy rate at multiple test launches.
Cheongung II, the upgraded version of the country's first indigenously developed medium-range surface-to-air guided missile of the same name, is equipped with multifunction radar to strike aircraft and missiles simultaneously, according to the Defense Acquisition Program Administration.
A complete battery consists of up to six 8-cell transporter erector launchers (TELs), a passive electronically scanned array (PESA) X-band multi-function phased array 3D radar (based on the one from the Russian S-400), and a fire command vehicle.[6] The radar operates in the X-band and rotates at a rate of 40 rpm, covering up to 80 degrees in elevation.
It can detect targets within 100 km (62 mi) and track up to 40 simultaneously.
