摘要
结合北斗二号(COMPASS)和GPS系统的运行轨道参数及系统特性,建立了COMPASS/GPS双模导航定位伪距测量误差模型,推导分析了双系统定位的几何误差因子;并对某地区的COMPASS/GPS双模导航定位精度进行了系统的分析。仿真结果表明,在某地区内,北斗二代系统在空间域与时间域上的整体稳定性优于GPS系统,组合的COMPASS/GPS系统在可见星和精度方面优于单一的定位系统。
According to the satellites orbit parameter and characteristic of COMPASS and GPS system, the model of pseudo range measure error in COMPASS/GPS combined navigation positioning is established, the positioning DOP of integral COMPASS/GPS is analyzed and educed; and the COMPASS/ GPS combined positioning precise in one area is analyzed systematically. Simulation indicates that in one area, integral stabilization of COMPASS system is superior to GPS in temporal and special domain, and integrated COMPASS/GPS system is superior to single system in satellites availability and positioning precise.
出处
《现代防御技术》
北大核心
2011年第4期35-39,54,共6页
Modern Defence Technology
基金
国家自然科学基金(61071014)
学院科研创新基金(DYCX1001)
关键词
北斗二号
全球定位系统
测量误差
精度因子
COMPASS
global positioning system （GPS）
measurement error
divisor of precision （DOP）
