基于虚拟参考站技术的组合差分信息生成研究与实现

Research and Implementation of GPS/GLONASS/BDS Combined Differential Corrections Generation Based on VRS Technology

虚拟参考站技术由于具有通用性强、操作简单、性能可靠等优点日益成为网络实时差分定位领域最成功、应用最广泛的解决方案。常规连续运行参考站系统都是基于全球定位系统的,随着我国北斗系统的日益完善和俄罗斯格拉纳斯系统的恢复,基于多系统组合定位的需求也越来越多。着重研究了基于虚拟参考站技术的全球定位系统、格拉纳斯系统及北斗系统的组合定位,主要是中长基线整周模糊度的在线固定和虚拟参考站网络差分信息的生成与发布,并编制服务器软件ZNetVRS,结合中海达公司实际工程项目对软件的精度和稳定性进行了验证。

Virtual reference station （VRS） technology is becoming the most successful and widely used application of the network real-time kinematic （RTK） field. The normal continuous operation reference station （CORS） system is based on GPS system, but the demand of the combined system positioning is becoming more and more as China＇s BeiDou navigation satellite system （BDS） is increasingly perfect and the recovery of global navigation satellite system （GLONASS） system. This article focuses on the research of GPS/GLONASS/BDS combined differential corrections generation based on VRS technology, which are the long baseline online ambiguity resolution and generation and release of VRS differential information mainly. A CORS software ZNetVRS is programed and the accuracy and stability are verified by the actual project of Hi-target company.