| 基于CSS的实时定位系统防碰撞性能分析 |
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| 引用本文： | 徐文青,张延波,王忠民,郭林鑫,宋伟宁. 基于CSS的实时定位系统防碰撞性能分析[J]. 山东科学, 2014, 27(6): 43-47. DOI: 10.3976/j.issn.1002-4026.2014.06.007 |
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| 作者姓名： | 徐文青 张延波 王忠民 郭林鑫 宋伟宁 |
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| 作者单位： | 1. 山东省科学院自动化研究所,山东 济南 250014;2. 威海北洋电气集团股份有限公司,山东 威海 264209 |
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| 摘 要： | 阐述了基于CSS的实时定位系统工作原理和通信协议,通过建立信道中标签发射信号的概率分布模型,分析了标签的防碰撞性能,推导出吞吐率最大时,时隙中的子时隙个数、占空比以及标签数量之间的关系。仿真结果验证了其正确性,通过对子时隙个数、占空比和标签数量等参数进行设计,可达到最高吞吐率,约为18%。
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| 关 键 词： | 啁啾扩频 防碰撞 实时定位 |
| 收稿时间： | 2014-06-20 |
Anti-collision performance analysis of a CSS based realtime localization system |
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| XU Wen-qing,ZHANG Yan-bo,WANG Zhong-min,GUO Lin-xin,SONG Wei-ning. Anti-collision performance analysis of a CSS based realtime localization system[J]. Shandong Science, 2014, 27(6): 43-47. DOI: 10.3976/j.issn.1002-4026.2014.06.007 |
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| Authors: | XU Wen-qing ZHANG Yan-bo WANG Zhong-min GUO Lin-xin SONG Wei-ning |
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| Affiliation: | 1. Institute of Automation, Shandong Academy of Sciences, Jinan 250014, China;2.Weihai Beiyang Electric Group Corporation Limited, Weihai 264209, China |
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| Abstract: | We present work principle and communications protocol of a CSS based realtime localization system. We also analyze anti-collision performance of a tag through establishment of the probability distribution model of tag transmission signals in a channel. We further acquire the relationship among sub-timeslot number, duty cycle and tag number when throughput attains the maximum. Simulation results verify its validity. Its maximum throughput is about 18% through the design for such parameters as sub-timeslot, duty cycle and tag number. |
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| Keywords: | CSS anti-collision realtime localization |
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