雷达引导数值跳点问题的解决方案  

Solution to Problems of Jumping Dots in Radar′s Digital Guidance

作　　者：何晶[1] 周锦标[1] 刘洋[1] 戴正旭[1] 

机构地区：[1]中国卫星海上测控部,江苏江阴214431

出　　处：《电讯技术》2012年第3期290-293,共4页Telecommunication Engineering

摘　　要：针对自跟踪天线数字引导数据出现的跳点现象,以典型的某船载雷达的数引算法为例,首先阐述了基于分析法轨道预报的计算流程,然后结合具体实例,运用图形仿真和静态与动态测试相结合的排查定位方法,按照轨道根数计算流程的逆过程逐渐追溯到问题的原因,即一阶短周期项计算环节存在数据跳变,并通过增加角度空间几何关系的限定条件最终成功解决了数引跳点问题。For a problem of the digital guidance jumping dot on the automatic tracking antenna, the calculating procedure of the satellite orbit forecast based on the analytical method is presented around a typical digital guid- ance algorithm of a certain shipborne radar. Then with some instances, the real cause for such a problem is found according to the opposite calculating procedure using simulation graph and a check - up means uniting the static test with the dynamic test, that is the first order short - term item. The problem is solved completely by giving an angle limit on dimensional geometrical connection.

关 键 词：船载雷达 自跟踪天线 数字引导 跳点 轨道预报 

分 类 号：TN95[电子电信—信号与信息处理]