基于GNSS/INS组合精密定位模糊度校正方法在城市车载测绘系统中的应用研究

Research on application of precision positioning ambiguity correction method in urban vehicle surveying system based on GNSS/INS combination

城市车载测绘系统在城市环境下进行精密定位时面临着多路径效应和信号遮挡等问题,导致定位精度下降。为了解决这一问题提出了基于GNSS和INS组合的精密定位模糊度校正方法。研究结果表明,基于GNSS和INS组合的精密定位模糊度校正方法能够有效地提高城市车载测绘系统的定位精度,减小多路径效应和信号遮挡对定位精度的影响,该方法具有重要的应用价值和广阔的推广前景。

Urban vehicle-mounted mapping system is faced the problems such as multi-path effect and signal occlusion when conducting precise positioning in urban environment,which leads to the decline of positioning accuracy.In order to solve this problem,a precision positioning ambiguity correction method based on the combination of GNSS and INS is proposed.The results show that the precision positioning ambiguity correction method based on the combination of GNSS and INS can effectively improve the positioning accuracy of urban vehicle mapping system,and reduce the influence of multi-path effect and signal occlusion on the positioning accuracy.The method has important application value and wide popularization prospect.