高精度航路捷径计算方法研究  

Study on the calculation method of high accurate route shortcut

作　　者：周立锋 Zhou Lifeng(PLA,Unit 92941 Element 45,Huludao 125000,China)

机构地区：[1]92941部队45分队

出　　处：《电子测量技术》2018年第19期59-62,共4页Electronic Measurement Technology

摘　　要：针对防空武器系统试验,在考核其拦截目标能力时,需要提供精确的航路捷径问题。结合试验和工程实际,根据武器系统和目标之间的态势关系,从航路捷径的定义出发,详细推导了WGS-84坐标系与假定坐标系之间的相互转换关系,并提出一种基于坐标变换的高精度航路捷径计算方法。通过算例数据分析,分别计算了1 000个航路捷径值,精度达到了毫米级,其精度相比传统的直接在电子地图量取航路捷径的方法提高了100倍以上,此方法已成功应用在靶场的武器系统试验中。In the test of air defense weapon system, it is necessary to provide accurate route shortcuts when evaluating the ability of intercepting target. According to the situation relation between weapon system and target, combination of test and engineering practice, the transformation relationship between WGS-84 coordinate system and assumed coordinate system is deduced from the definition of route shortcut. A calculation method of high precision route shortcut based on coordinate transformation is proposed. Through the analysis of numerical examples, the short-cut values of 1 000 routes are calculated respectively, and the accuracy reaches millimeter level, which is 100 times higher than the traditional method of taking the shortcut directly in the electronic map. This method has been successfully applied in the test of weapon system in range.

关 键 词：航路捷径 坐标变换 武器系统试验 假定坐标系 WGS-84坐标系 

分 类 号：TN99[电子电信—信号与信息处理]