摘要
多径误差是限制GPS精度进一步提高的环境关键因素之一。根据多径干扰的信号特性,推导了对GPS精度影响最大,反射信号处于镜反射情况下的多径误差的简便模型,讨论了衰减因子和GPS接收机天线高度等参数对多径信号相位的影响,并且进行了仿真计算和分析。
Multi-channel is one of conditions linchpin factors to advance ulteriorly precision of GPS. This paper has ciphered out multi-channel error＇s simple model which most affect GPS precision and reflected signal in condition of mirror＇s reflecting,according to the characteristic of multi-channel disturbed signal, and has discussed parameters which belong to attenuation factor and GPS receiver＇s affection of phase of multi-channel signal due to the antenna height and has processed copy calculation and analyse the emulation of calculation and analysis is also done.
出处
《全球定位系统》
2006年第1期12-15,共4页
Gnss World of China
关键词
GPS
多径误差
模型
GPS
multi-channel error
model
