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北斗三号PPP-B2b服务能够给中国以及周边区域提供免费的高精度服务。通过司南K803系列接收机接收PPP-B2b信号，利用JFNG站2021年11月5日至11月13日共9天的观测数据，评估了基于PPP-B2b产品的BDS和GPS的精密单点定位（PPP）的精度，包括静态和动态定位的精度以及对流层天顶延迟（ZTD）精度。结果表明：BDS静态PPP的定位偏差均方根误差（root mean square,RMS）在N、E方向为1.5 cm左右，在U方向上为3 cm左右；GPS静态PPP在N方向上的RMS在1 cm以内，E方向RMS在5 cm左右，U方向RMS在2 cm左右；BDS动态PPP在N方向RMS在3 cm左右，E方向RMS在4 cm左右，U方向上的RMS在8 cm左右，GPS动态PPP在N方向上为4 cm左右，在E方向上为6 cm左右，在U方向为10 cm左右。BDS的ZTD静态平均误差RMS小于1 cm，动态在1.3 cm以内；GPS的ZTD误差稍大一些，静态平均误差在1.5 cm左右，动态平均误差在2 cm以内。最终可以得出：基于JFNG站的北斗PPP-B2b服务实时精密单点定位BDS的定位精度和ZTD精度优于GPS。
Abstract：The BDS-3 PPP-B2b service can provide free high-precision services to China and surrounding areas. This article used Sinan K803 series receivers to receive PPP-B2b and evaluate its service accuracy, the evaluation period was 9 days, from November 5 to November 13, 2021. The impact of precise point positioning(PPP) of JFNG station based on BDS and GPS of PPP-B2b products was analyzed, including the precision of static and dynamic positioning, and precision of zenith tropospheric delay(ZTD). The results showed that: the root mean square error(RMS) of positioning deviation for BDS static PPP was about 1.5 cm in the N and E components, and about 3 cm in the U component; the RMS of GPS static PPP in the N component was within 1 cm, in the E component was about 5 cm, in the U component was about 2 cm; the RMS of the BDS dynamic PPP was about 3 cm in the N component, in the E component was about 4 cm, in the U component was about 8 cm, and the RMS of the GPS dynamic PPP was about 4 cm in the N component. It was about 6 cm and 10 cm in the E and U component, respectively. The static average error RMS of the ZTD for BDS was less than 1 cm,and the dynamic average error was within 1.3 cm; the ZTD error of GPS was slightly larger, the static average error was about 1.5 cm, and the dynamic average error was within 2 cm.
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基本信息:
DOI：10.13875/j.issn.1674-0637.2023-02-0130-11
中图分类号:P228.4
引用信息:
[1]矫殿成,何在民,马红皎,等.基于JFNG站的北斗PPP-B2b服务实时精密单点定位精度评估[J].时间频率学报,2023,46(02):130-140.DOI:10.13875/j.issn.1674-0637.2023-02-0130-11.
基金信息:
装备技术基础科研资助项目（E054J1K1601）
2023-04-15
2023-04-15