卫星间水平距离对双差电离层残差的影响分析
发布时间：2019-06-27 07:28
【摘要】：基于TCAR方法,对影响模糊度固定的电离层残差因素进行分析,指出同测站间基线的长短一样,差分卫星间的水平距离也能够影响双差电离层残差的大小,并用实测北斗三频数据验证。实验结果表明对17km短基线,较大的差分卫星间水平距离会降低窄巷模糊度固定的成功率;而对于72.6km的中等长度基线,当双差卫星间水平距离减小时双差电离层残差随之减小,利于窄巷模糊度的固定。
[Abstract]:Based on the TCAR method, the factors affecting the ionosphere residual with fixed ambiguity are analyzed. It is pointed out that the horizontal distance between the differential satellites can also affect the size of the double difference ionosphere residual, which is verified by the measured Beidou three-frequency data. The experimental results show that for the short base line of 17km, the large horizontal distance between differential satellites will reduce the success rate of narrow lane ambiguity fixation, while for the medium length base line of 72.6km, when the horizontal distance between double difference satellites decreases, the double difference ionosphere residual will be reduced, which is beneficial to the fixed ambiguity of narrow lane.
【作者单位】： 信息工程大学地理空间信息学院;
【基金】：国家自然科学基金资助项目(41174006) 中国博士后科学基金资助项目(201003772;20100481458)
【分类号】：P228.4
本文编号：2506606
[Abstract]:Based on the TCAR method, the factors affecting the ionosphere residual with fixed ambiguity are analyzed. It is pointed out that the horizontal distance between the differential satellites can also affect the size of the double difference ionosphere residual, which is verified by the measured Beidou three-frequency data. The experimental results show that for the short base line of 17km, the large horizontal distance between differential satellites will reduce the success rate of narrow lane ambiguity fixation, while for the medium length base line of 72.6km, when the horizontal distance between double difference satellites decreases, the double difference ionosphere residual will be reduced, which is beneficial to the fixed ambiguity of narrow lane.
【作者单位】： 信息工程大学地理空间信息学院;
【基金】：国家自然科学基金资助项目(41174006) 中国博士后科学基金资助项目(201003772;20100481458)
【分类号】：P228.4
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