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辽宁工程技术大学学报（自然科学版） 료녕공정기술대학학보（자연과학판）
JOURNAL OF LIAONING TECHNICAL UNIVERSITY(NATURAL SCIENCE)
2013年 5期 632-636 ,共5页

田林亚%热比亚·依马尔%张勇%祖力比亚·阿布都热西提

전림아%열비아·의마이%장용%조력비아·아포도열서제

GPS/GLONASS组合定位%时间系统%同步偏差%方差分量估计%UTC%GPS时间系统%GLONASSS时间系统%接收机种差 GPS/GLONASS組閤定位%時間繫統%同步偏差%方差分量估計%UTC%GPS時間繫統%GLONASSS時間繫統%接收機種差
GPS/GLONASS조합정위%시간계통%동보편차%방차분량고계%UTC%GPS시간계통%GLONASSS시간계통%접수궤충차
GPS/GLONASS integrated positioning%time system%synchronous deviation%variance component estimation%UTC%GPS time system%GLONASS time system%receivers differentiae

为研究GPS/GOLNASS组合定位中两个不同时间系统转换到UTC时间系统后存在微小的同步偏差问题，采用方差分量估计的方法解算 GPS/GLONASS 组合定位系统中不同时间系统的同步偏差，并进行实例计算与分析。研究结果表明：GPS/GLONASS组合定位的精度要优于GPS单系统，GPS与GLONASS的时间系统（各自转换为UTC时间）存在190～270 ns的系统偏差，且使用不同接收机观测的数据进行计算所得到的系统偏差存在一定的差异。
위연구GPS/GOLNASS조합정위중량개불동시간계통전환도UTC시간계통후존재미소적동보편차문제，채용방차분량고계적방법해산 GPS/GLONASS 조합정위계통중불동시간계통적동보편차，병진행실례계산여분석。연구결과표명：GPS/GLONASS조합정위적정도요우우GPS단계통，GPS여GLONASS적시간계통（각자전환위UTC시간）존재190～270 ns적계통편차，차사용불동접수궤관측적수거진행계산소득도적계통편차존재일정적차이。
In order to study the synchronous deviation of time system in GPS/GLONASS integrated positioning after two time systems being converted to the UTC, the variance component estimation was used and a practical example is calculated and analyzed. The results show that the GPS/GLONASS integrated positioning is superior to GPS. There is a little deviation at the range of 190ns~270ns between GPS and GLONASS time system after being converted to the UTC. Moreover, the data that obtained by different receiver also contains some deviations.