摘要
针对常规跟踪解算方法难以满足俯仰角大范围观测跟踪性能要求的问题,提出一种可应用于俯仰角大角度时的精确跟踪算法。分析光电转塔目标跟踪的常规跟踪算法原理,根据图像坐标转换关系以及矢量等效旋转,推导高精度跟踪指令,对目标偏离量做执行轴投影,再把第三维跟踪运动分解为另外两维等效运动,最终使跟踪运动指令精确执行,并采用仿真定量分析2种跟踪算法的跟踪指令精度。仿真结果表明:该算法能有效解决俯仰过顶跟踪错误问题,并提高跟踪精度。
Aiming at conventional tracking algorithm can not meet the requirement of large area observation and tracking performance of pitching angle, put forwards a precise tracking algorithm apply to pitching large-angle. Analyze conventional tracking algorithm principle of photoelectric turret target tracking. According to image coordinates transformation relation and vector equivalent rotation, deduce high precision tracking index and carry out execution axis projection target offset. Then, decompose the third dimension tracking motion into other second dimension equivalent motion. At last, precisely carry out tracking motion index, and use simulation quantitative to analyze tracking index precision of 2 tracking method. The simulation results show that the algorithm can effectively solve pitching head tracking error and improve tracking precision.
出处
《兵工自动化》
2013年第4期78-80,共3页
Ordnance Industry Automation
关键词
常规跟踪算法
精确跟踪算法
等效旋转
过顶跟踪
仿真
conventional tracking algorithm
precise tracking algorithm
equivalent rotation
head tracking
simulation
