摘要
针对卫星干扰源定位问题,提出了利用地理信息系统及使用WSG-84坐标系的精确定位模型;在此基础上,提出了利用地球圆球面进行解析粗定位与利用WSG-84椭球面切平面进行迭代精定位相结合的综合定位算法,推导了定位算法的理论误差表达式。由仿真结果可知,该系统利用地理信息系统辅助时,相比于时差误差和频差误差带来的系统误差,高程误差带来的系统误差可以忽略。
In view of satellite interference location,a precise location model using geographic information system and WGS-84 coordinate was presented,an integrative algorithm using spherical surface for coarse analytic locating and tangent plane for precise iterative locating was therefore proposed,and the theoretical error expression for location method was deduced. According to the location simulation result, when using geographic information system,compared with TDOA error and FDOA error,the location error caused by height error can be neglected.
出处
《弹箭与制导学报》
CSCD
北大核心
2014年第2期160-164,共5页
Journal of Projectiles,Rockets,Missiles and Guidance
关键词
TDOA
FDOA
双星定位
误差分析
切平面
TDOA（time difference of arrival）
FDOA（frequency difference of arrival）
dual-satellite location
error analysis
tangent plane
