一种无线电目标定位算法研究  

Research on Radio Target Positioning Algorithm

作　　者：赵军[1] 马朝霞[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《计算机与网络》2013年第14期69-71,共3页Computer & Network

摘　　要：对飞行目标实现实时准确的定位是保证系统稳定可靠的关键,无线电目标定位算法采用白塞尔大地主题反算方法,依据飞机高度角迭代,实现了在WGS84坐标系下的精确大地坐标解算。相对传统方法把地球当称圆球来解算,解算精度随飞机飞行距离的增加而急剧降低,算法实际应用差,而采用飞机高度角迭代方法时,距离对精度的影响并不显著,精度很大取决于观测精度,不受算法本身限制,所以此算法应用范围更广,完全适应中长距离飞行器大地坐标解算。通过对数据仿真分析和飞行试验,验证了该算法的可靠性和稳定性。The real-time accurate positioning of flying target is essential to guarantee the stability and reliability of the system. The radio target positioning algorithm utilizes Baisaier geodetic problem inversion method, and the precise geodetic coordinate calculation under the WGS84 coordinates is realized according to the aircraft＇ s altitude angle iteration. Compared with the traditional methods which take the earth as a sphere to calculate, the calculation precision decreases rapidly as the flight distance increases, the practical application of algorithm is poor. However, by utilizing the aircraft＇s altitude angle iteration, the distance has no profound effect on the precision, and the precision greatly depends on the observation precision without restriction of algorithm itself. Therefore, this algorithm has extensive application range and completely suits for the geodetic coordinate calculation of middle-long distance aircraft. By the data simulation analysis and the flight test, the reliability and stability of this algorithm is verified.

关 键 词：观测方位角 大地高 无线电测距 

分 类 号：TN98[电子电信—信息与通信工程]