摘要
随着多频卫星导航信号的播发,利用多频观测数据组合对周跳进行快速准确的探测与修复将会得到广泛的应用。该文介绍了北斗三频数据组合周跳探测与修复的原理,结合多频载波相位组合观测值长波长及低噪声的性质,选取(4,-2,-3)、(-1,-5,6)和(-4,1,4)线性无关的相位组合,探讨了该组合下伪距/相位组合法在不同周跳情况下的周跳探测性能。结果表明三频伪距/相位组合法对单频点周跳和多频点同时周跳都具有快速准确地探测效果,可以很好的对北斗实测数据进行实时周跳探测与修复工作。
With the multi-frequency satellite navigation signal broadcast, using the combination of muhi frequency observation data to detect and repair the cycle slips quickly and accurately will be widely used. The cycle-slip detection and repair algorithms of BDS triple-frequency data combination are introduced in this paper. Combined with the observation value nature of the long wavelength and low noise by multi-fre- quency combination of carrier phase, selecting the linearly independent phase combination of （4, - 2, -3）, （ -1, -5, 6） and （ -4, 1, 4）, the performances of cycle-slip detection about pseudorangc/ phase combination in this combination in the case of different types of cycle-slip are discussed. The results show that the triple-frequency pseudorange /phase combination can detect the cycle slips of single fre- quency point and multi frequency points quickly and accurately,and it can be well used to detect and re- pair the cycle slips in real time.
作者
杨卫锋
黄张裕
黄闯
陈梦杰
Yang Weifeng Huang Zhangyu Huang Chuang Chen Mengjie(School of Earth Science and Engineering, Hohai Universit)
出处
《勘察科学技术》
2017年第3期54-57,共4页
Site Investigation Science and Technology
关键词
北斗卫星导航系统
三频数据组合
周跳探测与修复
伪距/相位组合
Beidou Navigation Satellite System（BDS）
triple-frequency data combination
cycle-slip de-tection and correction
pseudorange/phase combination
