首页|接收机钟增强北斗三实时PPP单向授时方法

接收机钟增强北斗三实时PPP单向授时方法

扫码查看
针对实时精密单点定位(PPP)单向授时过程中易受到短时间数据异常导致的重新收敛问题,该文根据站钟的高稳定特性,提出一种接收机钟增强北斗三(BDS-3)实时PPP单向授时方法.实验选取4个外接高性能的原子钟,连续15 d的观测数据,并接收BDS-3精密单点定位服务(PPP-B2b)播发的实时精密产品,用以分析钟模型对实时BDS-3 PPP单向授时的影响.试验结果表明,钟模型可有效避免短时间异常情况下重新收敛的问题,可提高实时BDS-3 PPP授时频率稳定度最大提高约75%,授时精度最大提高22%.
The receiver clock model enhances BDS-3 real-time PPP one-way timing
Aiming at the problem of re-convergence caused by short data anomalies in real-time precise point positioning(PPP)one-way timing,the receiver clock offset in PPP according to the high stability characteristics of the station clock was proposed.Four stations connected to a high-precision atomic clock for 15 consecutive days were chosen and real-time precise products from BDS-3 PPP-B2b service were selected to analyze the influence of the clock model on real-time BDS-3 PPP one-way timing.The experimental results show that the clock model can effectively avoid the problem of re-convergence in the case of short-time anomalies,and can increase the real-time BDS-3 PPP timing uncertainty by up to 22%and the frequency stability by up to 75%.

receiver clock modelBDS-3PPP-B2btimingPPP

王国芳、文刚、王一帆、关昕、柯福阳

展开 >

云南电网有限责任公司电力科学研究院,昆明 650217

南京信息工程大学,南京 210044

接收机钟模型 BDS-3 PPP-B2b 授时 PPP

中国南方电网云南电网有限责任公司科技项目

YNKJXM20220151

2024

测绘科学
中国测绘科学研究院

测绘科学

CSTPCD北大核心
影响因子:0.774
ISSN:1009-2307
年,卷(期):2024.49(4)
  • 1