Target Detection And Recognition Base On 1-D Lidar Range Image

Using rapid meathod laser fuze can measure the distance of the target/background quickly. When laser fuze flies across the ground by using the weapon system, it can obtain the information of the one-dimensional (1-D) range profile which contains the 1-D profile of targets, the altitude wave of background and the flight height change of weapon system.Using signal process technology, the signal process system of laser fuze detects target signal from 1-D range profile series of target/background. Then target exsiting whether or not is confirmed through characteristics of image distance. Aiming at characteristics of glance missile weapon system, detection and identification of target signal are realized by gliding detection threshold arithmetic approach that time constant is adjustable and identification method that is used in 1-D profile statistic characteristic of target.For researching algorithms of target detect, firstly, a model of target/background 1-D range profile was built using characteristics of fuse flight bench.Secondly, considering geometrical models of armored target, a sequence signal library of target/background 1-D range profile is obtained using simulation method. Then analyzed and processed this sequence signal, and extracted their characteristics including detecting characteristics and identifying characteristics.Lastly, developed target-detected algorithms and target-identified algorithms based on these characteristics. Otherwise, optimized these algorithms to increase signal processing speed, and to fulfill products instructions at sides of real-time characteristics and bomb-spot control characteristics. In this paper, made use of simulation method to ensure the algorithm validity.