周视红外搜索系统对空中目标的搜索模型  

Model for Point-target Detection of Panoramic IR-searching System

作　　者：贾庆莲[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,长春130033

出　　处：《长春理工大学学报（自然科学版）》2015年第3期6-10,共5页Journal of Changchun University of Science and Technology(Natural Science Edition)

摘　　要：针对周视红外搜索系统提出了基于固定载体和动载体的空中目标搜索模型,并以多站时间配准技术对该搜索模型进行了仿真分析。对于固体载体周视扫描,建立了红外搜索设备与目标的相遇关系原理图,对于动载体周视扫描,以大地坐标系为基础,分析了搜索设备的运动与目标运动之间的关系。采用自适α-β滤波技术进行时间配准,可以保证搜索的实时性及准确性。仿真试验针对不同的目标航迹,分析了目标的方位角、俯仰角在时间配准后的误差,试验结果证明提出的搜索模型在经过时间配准后对目标的搜索方位角误差大约为0.07mrad左右,俯仰角误差大约为0.08mrad左右。A searching model based on fixed carrier and athletic carrier is presented for panoramic infrared searching sys-tem. Multi-sensor time registration is used to emulating analysis for the searching model. The encounter connection the-ory of target and the searching equipment is built for fixed carrier panoramic scanning. The relation of the movement of searching equipment and the movement of target is analyzed by the mathematics model according to earth reference frame for athletic carrier. A method of time registration based on adaptive α-β filtering algorithm is adopted to assure the real-time and veracity. The error of target azimuth and pitching after time registration are analyzed by correspond-ing different target tracks in the simulation test. The result shows that the error of azimuth is about 0.07mrad and the error of pitching is about 0.08mrad after time registration.

关 键 词：搜索模型 周视扫描 时间配准 自适应Α-Β滤波 

分 类 号：TN215[电子电信—物理电子学]