摘要
在进行卫星导航定位时,利用载波相位比利用码相位进行定位拥有更好的定位精度和安全性,并可以提升用户的满意度,然而得到测相伪距的前提是明确载波相位的整周模糊度和周跳数。首先根据三频模糊度分解模型将整周模糊度解算出来;然后利用三频码伪距/载波相位组合法进行周跳数的求解;最后仿真验证了整周模糊度解算方法的正确性,并分析比较多频接收机型号的不同对卫星信号周跳值的影响。
The accuracy of positioning and security can be obtained better by using carrier phase than code phase when satellite is under navigation and positioning, and customer satisfaction can be improved. But the premise of getting phase pseudorange measurement is the determination of integer ambiguity and cycle slip. Firstly, the integer ambiguity is calculated based on tri -frequency ambiguity decomposition model. Then, the cycle slip is detected by means of combination of multi -frequency pseudorange code and carrier phase. Finally, the validity of resolving integer ambiguity is verified by simulations and the influence of different receivers on cycle slip of satellite signals is compared.
出处
《航天控制》
CSCD
北大核心
2017年第1期66-70,76,共6页
Aerospace Control
基金
民航安全能力建设基金(ADDSA0007)
关键词
载波相位
整周模糊度
周跳
Carrier phase
Integer ambiguity
Cycle slip
