移动站GNSS软件对外弹道测量的优化方案  

Optimization for GNSS Software of Exterior Ballistic Measurement in the Mobile Station

作　　者：刘洋[1] 赵文华[1] 吴有杏[1] 季燕青[1] 

机构地区：[1]中国卫星海上测控部,江苏江阴214431

出　　处：《无线电工程》2007年第1期32-34,共3页Radio Engineering

摘　　要：阐明了移动站GNSS无法进行差分定位的机理,并由此引出了基准接收机在某些型号外弹道测量中所起的特殊作用。针对现有GNSS软件对导航电文屏蔽造成无法实现模飞的缺陷,深入分析了GNSS电文数据格式、定位解算的实现流程和判决条件,揭示了导航电文动态刷新是造成该问题的主要原因,并据此提出了利用镜像文件库保存导航电文共享缓冲区信息元内容的软件优化方案。The principle of GNSS differential positioning for the mobile station is described, thus the special functions of the reference receiver in some exterior ballistic measurements are introduced, and GNSS message format, implementation flow and judgement condition of positioning solution are analyzed in depth in terms of being unable to carry out/light simulation, and navigation message dynamic refresh being main reason for this problem is uncovered, and therefore a new GNSS software optimization for storage of navigation message by image file base is presented.

关 键 词：GNSS 导航电文 模飞 信息元 

分 类 号：TN961[电子电信—信号与信息处理]