面向电力应用的低成本导航模块GNSS定位性能评估

GNSS Positioning Performance Evaluation of Low-cost Navigation Module for Power Applications

低成本导航模块在电力基础设施建设、电力巡检等领域有广阔的应用前景,其观测数据质量主要取决于所用接收天线的质量及观测环境的优劣。文章对不同接收天线和低成本导航模块组合的双差定位结果进行评估分析,定性分析了不同接收天线和低成本导航模块组合的定位质量。在静态相对定位中,使用低精度天线与低成本导航模块组合获得的观测值双差模糊度解算效果与使用高精度天线–低成本导航模块组合相当,双差伪距残差无明显差异。针对杆塔倾斜、地址沉降等静态的电力高精度定位应用需求,可适当选择低精度低成本的天线以降低成本,分析结果将为电力行业大范围推广应用北斗等导航卫星定位模块提供参考。

The low-cost navigation module has broad application prospects in power infrastructure construction,power inspection and other fields.The quality of its observation data mainly depends on the quality of the receiving antenna and the condition of the observation environment.This paper evaluates and analyzes the double-difference positioning results of different receiving antennas and low-cost navigation module combinations,and qualitatively analyzes the positioning quality of different receiving antennas and low-cost navigation module combinations.In static relative positioning,the double-difference ambiguity resolution effect of observations obtained by using a combination of a low-precision antenna and a low-cost navigation module is equivalent to that of using a combination of a high-precision antenna and a low-cost navigation module,and there is no significant difference in double-difference pseudorange residuals.For static power high-precision positioning applications such as tower tilt and address settlement,low-precision and low-cost antennas can be appropriately selected to reduce costs.The analysis results will provide guidance for the large-scale application of BDS and other navigation satellite positioning modules in the power industry.