GPS实时定姿系统的设计与实现

DESIGN AND IMPLEMENTATION OF GPS REAL-TIME ATTITUDE DETERMINATIONSYSTEM

以GPS OEM板为基本硬件,在自行研制GPS实时定姿软件的基础上,搭建了GPS实时定姿系统。该系统硬件结构简单,成本低廉。定姿软件解决了数据接收、解码、同步,模糊数快速计算,动态检校等关键技术。经多次静态、动态试验验证,系统运行稳定,动态跟踪性能良好。基线长度为1.2m时,定姿精度优于0.3°,可单独用于系统的导航,或作为系统导航设备的校准装置,具有很好的应用价值。

Based on self-developed software, a GPS real-time attitude determination system is built using GPS OEM boards as basic hardware. The Hardware structure is simple and the cost of system is low. The attitude determination software solve a series of technical problems such as data receiving, decoding and synchronizing, carrier phase ambiguity resolution, system kinematic calibration. Validated by static and kinematic experiments, the system run stably and has well dynamic performance. The mean square error of attitude can be less than 0.3? when baseline length be 1.2m around. So the system can act as navigation equipment or as regulator of navigation equipment.