| 北斗双星系统车辆定向技术 |
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| 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. |
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| 作者姓名： | 吴美平 逯亮清 |
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| 作者单位： | 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。
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| 关 键 词： | 北斗双星系统 载波相位 模糊度 定向 |
| 文章编号： | 1001-2486(2006)03-0089-05 |
| 收稿时间： | 1/6/2006 12:00:00 AM |
| 修稿时间： | 2006年1月6日 |
Research on Vehicle Heading Determination through Beidou Bi-satellite System |
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| WU Meiping and 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. |
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| Authors: | WU Meiping and LU Liangqing |
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| Institution: | College of Mechatronics Engineering and Automation, National Univ. of Defense Technology, Changsha 410073, China;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. |
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| Keywords: | Beidou Bi-Satellite System carrier phase ambiguity heading determination |
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