| 煤矿井下救援定位系统研究 |
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| 引用本文： | 郭继坤,马鹏飞,赵肖东.煤矿井下救援定位系统研究[J].吉林大学学报(信息科学版),2015,33(2):168-172. |
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| 作者姓名： | 郭继坤 马鹏飞 赵肖东 |
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| 作者单位： | 黑龙江科技大学电气与控制工程学院, 哈尔滨150022 |
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| 基金项目： | 国家重大科学仪器设备开发专项基金资助项目(2012YQ150213) |
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| 摘 要： | 为提高救援定位系统的定位精度, 设计了基于双Mach鄄Zehnder 干涉仪结构的煤矿井下救援定位系统,并分析了系统的结构及定位原理。结合小波阈值降噪特点, 给出了一种基于小波阈值降噪的互相关时延估计算法。仿真结果表明, 该算法可有效提高系统的定位精度。该系统定位方法容易实现, 具有无源、防燃防爆、
抗电磁干扰和远程控制等突出优点, 具有很大的实际应用价值。
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| 关 键 词： | 矿难 救援定位时延估计 互相关 信噪比 定位精度 |
| 收稿时间： | 2014-07-30 |
Research on Rescue Positioning System of Coal Mine |
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| GUO Jikun
,
MA Pengfei
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ZHAO Xiaodong.Research on Rescue Positioning System of Coal Mine[J].Journal of Jilin University:Information Sci Ed,2015,33(2):168-172. |
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| Authors: | GUO Jikun MA Pengfei ZHAO Xiaodong |
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| Institution: | College of Electric & Control Engineering, Heilongjiang University of Science & Technology, Harbin 150022, China |
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| Abstract: | Because the existing personnel positioning system is difficult to locate the personel position in mine accidents, a system based on double Mach-Zehnder interferometer structure is designed. The structure and positioning principles of the system is described, the positioning method of the system is easy to implement, with the advantages of a passive, flame-proof, anti-electromagnetic interference and remote control and so all, having great practical value. To improve the positioning accuracy of the system, combined with wavelet threshold noising features, a wavelet threshold noising cross-correlation delay estimation algorithm is preposed. The simulation results show that the algorithm can effectively improve the positioning accuracy of the system. |
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| Keywords: | coal mining accident rescue positioning estimation of time delay cross-correlation signal to noise ratio positioning accuracy |
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