【摘要】 针对传统的CORS系统在高速公路等带状区域场景下存在的定位性能不足问题，尝试通过构建单站RTK和多站VRS结合的带状CORS系统从而提升定位性能，并实地采集多组不同基线长度的北斗三频观测数据，测试在满足平面2 cm、高程3 cm的最大定位误差前提下，该种CORS服务模式下基站的合理布设距离。实验结果表明，在开阔、轻微遮挡和中度遮挡环境下，满足该定位精度的基线长度分别可以达到30 km、19.7 km、15 km,而对于更长的基线，其定位精度及模糊度固定成功率均明显下降，不能保证定位的可靠性。更多还原

【Abstract】 In response to the insufficient positioning performance of traditional CORS systems in strip application scenarios such as highways, this paper attempts to improve positioning performance by constructing a strip CORS system combining single-station RTK and multi-station VRS, and collects multiple sets of BDS three-frequency observation data with different baseline lengths to test the reasonable deployment distance of the base station under the premise of satisfying a maximum positioning error of 2 cm in the plane and 3 cm in height. The experimental results show that in open, slightly obstructed, and moderately obstructed environments, the baseline lengths that meet the positioning accuracy requirements can reach 30 km, 19.7 km, and 15 km, respectively. For longer baselines, both the positioning accuracy and the success rate of fixed ambiguities decrease significantly, and the reliability of positioning cannot be guaranteed.更多还原