伪距相位法联合超长波长组合探测和修复周跳  

Pseudo-range Phase Method Combined with Ultra Long Wavelength Combination Detection and Repair Cycle Slip

作　　者：高元鹏 张艳兵[2] GAO Yuanpeng;ZHANG Yanbing(Heavy Hydrogeological Engineering Geological Prospecting Institute, Haikou 571100, China;College of Earth Science and Engineering, Hohai University, Nanjing 211100, China)

机构地区：[1]海南水文地质工程地质勘察院,海南海口571100 [2]河海大学地球科学与工程学院,江苏南京211100

出　　处：《全球定位系统》2018年第2期28-32,共5页Gnss World of China

摘　　要：针对BDS实测数据抖动较大以及不敏感组合在组合修复中的多值性问题,提出了一种伪距相位法联合超长波长组合探测和修复周跳。通过对采样间隔1s和15s的两组北斗观测数据进行探测与修复,证明了伪距相位法无法探测小于6周的周跳,但可以将其探测结果作为初值,缩小超长波长组合修复的搜索空间;超长波长组合通过增加电离层变化量的估计,消除了采样间隔变化对周跳探测的影响;采用空间邻域搜索法对两个超长波长组合交叉搜索,解决了不敏感组合造成的多值性问题。Aiming at the problem of large measured data of BDS and multivalue caused by insensitive combination in the combination restoration,a method of combining pseudorange phase method and ultra-long wavelength combination is proposed to detect and repair cycle jumps.Through detecting and repairing cycle jumps of two sets of BDS observation data in the sampling interval of 1 sand 15 s,the results show that the pseudo-range phase method can＇t detect the cycle slip of less than 6 weeks,but the detection results can be used as an initial value to reduce the search space of the ultra-long wavelength combination.The ultralong wavelength combination eliminates the influence of the sampling interval on the detection of the cycle slip by estimating of the ionospheric variation.The Multi-valued problem caused by insensitive combination is solved by using the cross search method in the two ultra-long wavelength combinations.

关 键 词：伪距相位法 超长波长组合 电离层变化估计 交叉搜索 

分 类 号：P228.4[天文地球—大地测量学与测量工程]