CAJ | 학술논문

利用三频超宽巷/宽巷模糊度波长较长从而易于固定的优势,提出了一种基于北斗三频宽巷组合的网络 RTK 单历元定位方法.数据处理中心利用基准站实时生成并播发包含双差对流层和电离层延迟改正信息的虚拟观测值；用户站利用载波、伪距组合及分步解算的 TCAR 方法基于单个卫星对、单历元可靠固定两个超宽巷或宽巷模糊度.最后利用已固定模糊度且噪声最小的宽巷观测值和内插得到的大气延迟改正进行实时动态定位解算.试验结果表明,对于本文提出的网络 RTK 单历元定位方法,用户站宽巷模糊度单历元解算准确率高于99．9％,统计的定位中误差平面为3~4 cm,高程方向约为5 cm.
이용삼빈초관항/관항모호도파장교장종이역우고정적우세,제출료일충기우북두삼빈관항조합적망락 RTK 단역원정위방법.수거처리중심이용기준참실시생성병파발포함쌍차대류층화전리층연지개정신식적허의관측치；용호참이용재파、위거조합급분보해산적 TCAR 방법기우단개위성대、단역원가고고정량개초관항혹관항모호도.최후이용이고정모호도차조성최소적관항관측치화내삽득도적대기연지개정진행실시동태정위해산.시험결과표명,대우본문제출적망락 RTK 단역원정위방법,용호참관항모호도단역원해산준학솔고우99．9％,통계적정위중오차평면위3~4 cm,고정방향약위5 cm.
Using the advantage that triple-frequency extra-widelane or widelane ambiguities have much longer wavelength and thus are easy to be fixed,a new network RTK (real-time kinematic)single-epoch positioning method based on BDS widelane combinations is proposed.The data processing center uses reference stations to calculate and broadcast the real-time vi rtual observations including double difference (DD)tropospheric and ionospheric delay correction.Then using single-satel l ite-pai r and single-epoch mode,two extra-widelane or widelane ambiguities are resolved rel iably by carrier-pseudo combination and TCAR (three-carrier ambiguity resolution ) method at the rover station.Final ly, the ambiguity-fixed widelane observations with the minimum observation noise and the broadcast atmospheric correction are used together to calculate the real-time kinematic positioning results.Experimental results show that the correct rates of single-epoch widelane ambiguity resolution at rover stations are larger than 99.9%.The statistical positioning error in plane is 3-4 cm,and the error in up di rection is about 5 cm.