I. EKF Application in Radar Data Processing
The electromagnetic targets emerge extensively in future war, consequently the dependence on the radar sensor increases gradually, and the sensors will suffer from much cheat and interference, in addition the target speed is more and more fast, the target maneuverability is more vivid, and most targets adopt the hidden-body technique and the breakthrough technique of defense in low altitude, the sensor is more and more difficult to track the targets [1]. EKF technique is an important branch of the data fusion, and can probe, localize and track the maneuvering targets in the comparative accurateness, and the information, such as the position of the target, speed and acceleration etc., is given out in real time.