| 基于DSP的GPS/DR组合定位系统的设计 |
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| 引用本文： | 李宇 曹洁 任崇玉. 基于DSP的GPS/DR组合定位系统的设计[J]. 科学技术与工程, 2007, 7(21): 5647-5651 |
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| 作者姓名： | 李宇 曹洁 任崇玉 |
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| 作者单位： | 兰州理工大学,电气工程与信息学院,兰州,730050 |
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| 摘 要： | 对于城市车辆GPS导航来说,其很大的一个缺点是跟踪卫星的信号常常由于建筑物、隧道及树木等的遮挡而使GPS的定位精度大大降低,甚至无法进行正常的定位。为此,提出了基于DSP的GPS/DR组合定位系统,详细介绍了系统的硬件设计方法、组成和软件设计思想。最后进行了采用联合卡尔曼滤波器的GPS和DR系统的组合定位的仿真实验。实验证明,采用联合卡尔曼滤波算法的GPS/DR组合定位系统的转度明显高于GPS单独定位方式。
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| 关 键 词： | 全球定位系统 航位推算 DSP 组合定位系统 联合卡尔曼滤波 |
| 文章编号： | 1671-1819（2007）21-5647-05 |
| 修稿时间： | 2007-07-09 |
Design of Integrated GPS/DR Orientation System Based on DSP |
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| LI Yu,CAO Jie,REN Chong-yu. Design of Integrated GPS/DR Orientation System Based on DSP[J]. Science Technology and Engineering, 2007, 7(21): 5647-5651 |
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| Authors: | LI Yu CAO Jie REN Chong-yu |
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| Affiliation: | School of Electrical Engineering and Information Engineering, Lanzhou University of Technology, Lanzhou 730050, P. R. China |
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| Abstract: | GPS can not be used continuously for city vehicle navigation due to the loss of satellite signals by obstructions from buildings,tunnel,trees and so on.Therefore,the integrated GPS/DR orientation System Based on DSP is introduced.The design method and composing of hardware and the design thinking of software are discussed in detail.In the end,integrated GPS/DR orientation system of federated Kalman filter is simulated.The result shows that its accuracy is better than that of GPS orientation System. |
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| Keywords: | GPS DR DSP the integrated GPS/DR orientation system federated Kalman filter |
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