| 引用本文: | 吴美平,逯亮清.北斗双星系统车辆定向技术.[J].国防科技大学学报,2006,28(3):89-93.[点击复制] |
| WU Meiping,LU Liangqing.Research on Vehicle Heading Determination through Beidou Bi-satellite System[J].Journal of National University of Defense Technology,2006,28(3):89-93[点击复制] |
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| 北斗双星系统车辆定向技术 |
| 吴美平, 逯亮清 |
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(国防科技大学 机电工程与自动化学院，湖南 长沙 410073)
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| 摘要: |
| 基于卫星载波相位干涉测量原理，研究了利用北斗双星系统确定车辆航向的相关技术。首先建立了北斗定向的数学模型；接着讨论了基于交换天线思想的等效转动基线极大/极小值ERMM模糊度确定方法；然后利用构建的双天线定向系统设计了车载实时航向确定实验，并通过高精度激光陀螺捷联惯导系统对航向确定精度进行了校核。实验结果验证了ERMM解模糊方法的有效性，表明定向系统实时航向确定有效精度可达0.62°。研究结果表明，北斗双星系统可以用于实时确定车辆的航向。 |
| 关键词: 北斗双星系统 载波相位 模糊度 定向 |
| DOI： |
| 投稿日期：2006-01-06 |
| 基金项目:国家部委资助项目(51409010203KG01) |
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| Research on Vehicle Heading Determination through Beidou Bi-satellite System |
| WU Meiping, LU Liangqing |
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(College of Mechatronics Engineering and Automation, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| Based on interferometry measurement theory of satellite carrier phase, the technology of land vehicle heading determination through Beidou Bi-Satellite System was studied. Firstly the mathematical model of Beidou heading determination was set up. Then the ERMM (Equivalent Rotating Maximum/Minimum) ambiguity resolution method based on antenna swap thoughts was discussed. Vehicle real-time heading resolution experiments were designed by using a two-antenna pointing system, and the heading precision was verified through a vehicular RLG (Ring Laser Gyro) strap-down INS with high attitude accuracy. The test results confirmed the effectiveness of ERMM ambiguity resolution method with the real-time heading determination accuracy reaching 0.62 degree. The research indicates that Beidou Bi-Satellite System can be used to real-time land vehicle heading resolution. |
| Keywords: Beidou Bi-Satellite System carrier phase ambiguity, heading determination |
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