摘要
针对前视红外低矮地面固定目标末制导问题,提出了一种利用目标周围容易识别的其他目标进行相对定位的方法。介绍了相对定位的原理,根据建立的数学模型推导相对定位的计算公式;根据误差传递原理对相对定位模型进行了误差分析,对影响定位误差的各个因素进行了仿真,得到误差影响曲线;最后结合实测数据验证相对定位的可行性与准确性,并总结各误差影响,给出了相对定位的适用条件。实测数据证明相对定位计算方法正确、可行;误差分析与统计结果指出:相对定位适用于距离大于6 km的情况,定位误差小于2个像素。所得结果为末制导任务规划提供了新的理论依据,为前视地面低矮、弱小固定目标实现远距离定位提供了技术支持。
For terminal guidance of forward-looking infrared （FLIR） dwarfism ground target, a relative positioning method was presented by using the easily recognition target around. Firstly, computing formula of relative positioning was obtained according to the mathematics model after the introduced theory of relative positioning. Then, error of relative positioning model was analyzed and the graphs of error infection were obtained after error analysis by all factors which affected the accuracy of relative positioning. Finally, application condition of relative positioning was presented in view of the factors. Experimental results demonstrate that the method of relative positioning is accurate and feasible, and the error analysis and statistical results show that the relative positioning method is applied with distance larger than 6 km, and the positioning error is less than two pixels. The conclusion can provide new theoretical basis for the mission planning of terminal guidance and the technology base for the remote terminal guidance of the forward looking ground dwarfism targets.
出处
《红外与激光工程》
EI
CSCD
北大核心
2012年第11期2861-2868,共8页
Infrared and Laser Engineering
基金
武器装备预研基金(9140C800201070C80)
