| 城市环境下BDS/GPS单频RTK定位算法研究 |
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| 引用本文： | 苏景岚,章红平.城市环境下BDS/GPS单频RTK定位算法研究[J].大地测量与地球动力学,2018,38(10):1033-1037. |
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| 作者姓名： | 苏景岚 章红平 |
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| 摘 要： | 分析一种顾及速度信息辅助模糊度固定、模糊度继承以及融合多普勒观测值的单频BDS/GPS RTK算法，并给出其算法模型。通过城市环境下的实际车载测试，对比分析BDS、GPS、BDS+GPS 3种模式下单频RTK定位性能和解算精度。
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| 关 键 词： | 城市环境 单频RTK 整数参数约束 速度信息辅助 |
Performance Analysis of RTK Algorithm for Single-FrequencyCombination of GPS and BDS in Urban Environments |
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| SU Jinglan,ZHANG Hongping.Performance Analysis of RTK Algorithm for Single-FrequencyCombination of GPS and BDS in Urban Environments[J].Journal of Geodesy and Geodynamics,2018,38(10):1033-1037. |
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| Authors: | SU Jinglan ZHANG Hongping |
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| Abstract: | GPS/BDS dual-frequency RTK positioning is fast and reliable, and is most widely used in high-precision dynamic positioning. However, its receiver is expensive and difficult to be widely used in urban environments. It is easy to promote GNSS single-frequency RTK because of low-price GNSS receiver. In this paper, we introduce a single-frequency BDS+GPS RTK algorithm, taking account of velocity information to assist in ambiguity fix, the inheritance of ambiguity, and the fusion of Doppler observation. Through an actual on-board test in urban environment, the single-frequency RTK positioning performance of BDS, GPS and BDS+GPS are compared and analyzed. |
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| Keywords: | urban environment single-frequency RTK integer-parameter constraint velocity information assistance |
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