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Medium to Long Range Kinematic GPS Positioning with Position-Velocity-Acceleration Model Using Multiple Reference Stations

机译:具有多个参考站的位置-速度-加速度模型的中长距离运动GPS定位

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摘要

In order to obtain precise kinematic global positioning systems (GPS) in medium to large scale networks, the atmospheric effects from tropospheric and ionospheric delays need to be properly modeled and estimated. It is also preferable to use multiple reference stations to improve the reliability of the solutions. In this study, GPS kinematic positioning algorithms are developed for the medium to large-scale network based on the position-velocity-acceleration model. Hence, the algorithm can perform even in cases where the near-constant velocity assumption does not hold. In addition, the estimated kinematic accelerations can be used for the airborne gravimetry. The proposed algorithms are implemented using Kalman filter and are applied to the in situ airborne GPS data. The performance of the proposed algorithms is validated by analyzing and comparing the results with those from reference values. The results show that reliable and comparable solutions in both position and kinematic acceleration levels can be obtained using the proposed algorithms.
机译:为了在中大型网络中获得精确的运动学全球定位系统(GPS),需要对来自对流层和电离层延迟的大气影响进行正确建模和估算。还优选使用多个参考站来提高解决方案的可靠性。在这项研究中,基于位置-速度-加速度模型,为中大型网络开发了GPS运动定位算法。因此,即使在近似恒定速度假设不成立的情况下,该算法也可以执行。另外,估计的运动加速度可以用于空中重量分析。所提出的算法使用卡尔曼滤波器实现,并应用于原位机载GPS数据。通过将结果与参考值进行比较和分析,可以验证所提出算法的性能。结果表明,使用所提出的算法可以在位置和运动加速度水平上获得可靠且可比的解决方案。

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