| UWB定位系统FPGA基带处理设计 |
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| 引用本文： | 朱警怡,黄鲁,高睿劼.UWB定位系统FPGA基带处理设计[J].微型机与应用,2013,32(13):20-23. |
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| 作者姓名： | 朱警怡 黄鲁 高睿劼 |
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| 作者单位： | 1. 中国科学技术大学电子科学与技术系集成电路实验室,安徽合肥,230027
2. 中国科学技术大学信息科学实验中心,安徽合肥,230027 |
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| 摘 要： | 基于到达时间差(TDOA)算法,设计了一个脉冲超宽带(IR-UWB)室内定位系统的原理验证样机。主要介绍传感器捕捉标签发送的IR-UWB窄脉冲,进而测出窄脉冲到达传感器时刻的方法。利用FPGA中数字时钟管理器(DCM)的相移器功能模块(PS)构成延迟锁相环(DLL),测得到达传感器的窄脉冲相对于同步时钟的时刻。原理验证系统定位精度优于40cm,达到设计要求。
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| 关 键 词： | 超宽带 定位系统 数字时钟管理器 |
The baseband design of UWB positioning system with FPGA |
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| Zhu Jingyi
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Huang Lu
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Gao Ruijie.The baseband design of UWB positioning system with FPGA[J].Microcomputer & its Applications,2013,32(13):20-23. |
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| Authors: | Zhu Jingyi Huang Lu Gao Ruijie |
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| Affiliation: | jie.IC Lab.,Department of Electronic Science ＆ Technology,University of Science ＆ Technology of China,Hefei 230027,China; 2.Information Science Iboratory Center,University of Science ＆ Technology of China,Hefei 230027,China) |
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| Abstract: | This paper designs an ultra-wideband impulse radio （IR-UWB） indoor positioning principle verification prototype system based on time difference of arrival （TDOA） method. It mainly introduces a method of the sensor to capture the IR-UWB pulse sent by label, that means the time IR-UWB pulse reaches the sensor. Using FPGA digital clock manager （DCM） phase shifter module （PS）, we form a delay lock Joop （DLL） to capture the IR-UWB pulse, and measure the moment of IR-UWB pulse reaches the sensor from the label. The positioning accuracy of the principle verification system is better than 40 cm, that meets the design requirements. |
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| Keywords: | UWB positioning system DCM |
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