地震废墟环境下Wi-Fi无线信号传播模型参数测量

武有文; 洪利; 姚振静; 韩智明; 李亚南

doi:10.11899/zzfy20170122

地震废墟环境下Wi-Fi无线信号传播模型参数测量

doi: 10.11899/zzfy20170122

武有文^{1, 2,},
洪利^{1, 2, ,},
姚振静²,
韩智明²,
李亚南²

1.
中国石油大学 (华东), 山东青岛 266580
2.
防灾科技学院, 河北三河 065200

基金项目:

地震科技星火计划项目：基于手机搜索的生命探测平台的研究 XH14072

详细信息

作者简介:
武有文, 女, 生于1993年。硕士生研究生, 研究方向:无线通信技术。E-mail:xiaoyouzi56@qq.com

通讯作者:
洪利, 男, 生于1968年。博士后, 教授。研究方向:灾害监测技术与仪器。E-mail:hongli2050@qq.com

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- 文章访问数: 134
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- 被引次数: 0
出版历程
- 收稿日期: 2016-06-29
- 刊出日期: 2017-03-01

Parameter Measurement of Wi-Fi Radio Signal Propagating in Constrction Ruins by Earthquake

Wu Youwen^{1, 2
,},
Hong Li^{1, 2
, ,},
Yao Zhenjing²,
Han Zhiming²,
Li Ya'nan²

1.
China University of Petroleum, Qingdao 266580, China
2.
Institute of Disaster Prevention, Sanhe 065200, China

摘要

摘要: 本文主要针对地震废墟下手机Wi-Fi无线定位，分析实际废墟环境下Wi-Fi 2.4G无线信号的传播特性。通过对废墟结构的分析，使用矢量网络分析仪进行信道测量，对大尺度和小尺度衰减两种特性进行信道分析。采取理论预测和实际测量分析相结合的方法，对2008年5·12汶川地震的极重灾区遗址进行了废墟实地测量。对大尺度衰减进行路径损耗和钢筋混凝土吸收损耗分析，对小尺度衰减进行了平均超量时延和均方根时延分析，利用加窗、计算滑动均值，得到废墟下2.4G无线信号的传播规律，为下一步定位工作提供理论基础。
- Wi-Fi /
- 信道 /
- 建模 /
- 定位 /
- 路径损耗
Abstract: In this paper, we analyzed the transmission characteristic of Wi-Fi 2.4G wireless signal in the actual ruins environment, and studied the mobile phone Wi-Fi wireless location under the construction ruins by earthquake. Based on the analysis of the structure of the ruins, the vector network analyzer is used to measure the channel, and channel analysis is carried out from both large and small scale fading. After combining the theoretical prediction and experimental measuring at the site of "5·12" Wenchuan earthquake in China in 2008, the campaign is conducted from large scale fading and small scale attenuation parameters. Large scale attenuation is carried out by analyzing the path loss and the penetration loss of some particular materials, and small scale attenuation is experienced by analyzinging the mean excess delay and the root mean square delay. With the methods including window added and moving average, we obtain the regulation of the Wi-Fi 2.4G radio signal which is essential for further localization.
- Wi-Fi /
- Channel /
- Modeling /
- Localization /
- Path loss

HTML全文

图 1 频域扫频测量系统框架图

Figure 1. Block diagram of the measurement system

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图 2 测量用N×M点阵

Figure 2. The designed rectangular arrays for the measurement

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图 3 曲山小学测量点整体情况

Figure 3. Ruins in Qushan primary school. The ellipse indicates the entrance of experiment

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图 4 测量场景内部图

Figure 4. Internal scene of the measurement

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图 5 曲山小学Wi-Fi 2.4G频段路径损耗

Figure 5. Path loss of Wi-Fi 2.4G in Qushan primary school

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图 6 钢筋混凝土在不同频段下的穿透损耗

Figure 6. Ferro-concrete penetration loss with different frequency bands

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图 7 2450MHz钢筋混凝土层穿透损耗的预测值与测量值

Figure 7. Ferro-concrete the predicted and measured values of the ferro-concrete penetration loss in 2450MHz

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