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当前,利用多基站网络RTK技术建立的连续运行参考站系统(简称COSS)已成为GPS应用的发展热点,VRS(虚拟参考站)技术作为COSS的成熟应用具有允许服务器应用整个网络的信息来计算电离层和对流层的复杂模型、消除对流层误差及成果的可靠性、信号可利用性和精度水平在系统的有效覆盖范围内大致均匀等优势。本文通过在具体工作中的实际应用,验证了基于VRS技术的网络RTK测量精度可满足二级GPS控制点的精度,高程测量可替代五等水准,使得测量员一进入测区的任何一点就能立即开始GPS高精度实时动态RTK测量成为现实。
Currently, the continuous operation reference system (referred to as COSS) established by using RTK technology of multi-base station network has become a hotspot of GPS application. VRS (virtual reference station) technology, as a mature application of COSS, has the function of allowing the server to apply the whole network information to calculate the ionization Layer and troposphere complex models to eliminate tropospheric errors and the reliability of results, signal availability and accuracy of the level of the system within the effective coverage of roughly equal and so on. This paper verifies that the accuracy of network RTK measurement based on VRS technology can meet the accuracy of two-level GPS control points through the practical application in practical work. Elevation measurement can replace the fifth-level standard, so that surveyors can enter the survey area at any point Get started GPS high-precision real-time dynamic RTK measurement to become a reality.