摘要
传统的单目标地理定位方法无法适应现代战场态势实时多变、目标数量多的情况。为了提高目标定位效率,在单目标地理定位的基础上,给出一种适用于机载光电侦察系统的半主动多目标定位算法。通过建立初始东北天坐标系、飞机东北天坐标系、飞机机轴坐标系、光电稳瞄坐标系和多目标投影坐标系,同时结合目标相对方位、俯仰角度,得到了一系列欧拉角坐标转换公式,可以同时计算出多个地面目标的经纬度。计算机仿真结果表明:该算法能够对同一视场内的多个目标同时进行定位,即具有多目标定位功能。由于像素偏差增加了坐标转换累积误差,次目标定位精度略低于主目标定位精度。
Traditional single target position finding method can not fit the condition that the sit- uation of modern war field changes in real time and has many targets. In order to enhance the efficiency of target positioning, this paper developed a new semi-active multi-target positioning algorithm for airborne optoelectronic system on the basis of single target position finding. Through establishing the initial east-north-up （ENU） coordinates, aeroplane ENU coordi- nates, crankshaft coordinates, EO stabilized-aiming coordinates and multi-target projection co- ordinates, a series of coordinates transform formulas using the relative angles of target were derived, which could calculate the longitudes puter emulation showed that this algorithm and latitudes of multi-target. The result of com- could calculate the latitudes and longitudes of multi-target at the same time. The positioning precision of hypo-targets was lower than that of the main target because of the increased accumulated error of coordinates transforming by the pixel deviation.
出处
《应用光学》
CAS
CSCD
北大核心
2012年第4期717-720,共4页
Journal of Applied Optics
关键词
光电系统
定位
多目标
坐标转换
optoelectronic system
position finding
multi-target
coordinates trans^orm
