基于卫星导航的震后被困人员手机信号定位分析
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摘要
针对当前被困人员手机信号定位所采用的方法中手机信号定位距离存在局限性,且信号来源方向的确定受信号传播损耗变化影响较大的问题,提出基于卫星导航的震后被困人员手机信号定位分析方法。从地震的突发性、破坏性、社会影响和防御难度四个方面分析地震的特点,设计便携式移动台,通过GPS单差模型提取手机残差信号,计算各移动台在指定区域中的手机信号平均残差,获取各个区域手机信号的均方根,将均方差代入所有地震事件的双差方程进行联立,求解手机信号强度,通过AOA测量方法实现了卫星导航定位手机信号的分析。通过模拟在地震废墟中测试手机接收信号强度指示值(RSSI)与手机信号发射强度,对采集的数据进行分析以验证该系统在大范围地震废墟中的搜寻能力。实验结果证明,提出该方法系统可以对大范围的手机进行搜寻定位,信号来源方向较为稳定。
Aiming at the problems in the current method of mobile phone signal location, i.e., the limitation of location distance and the great influence of the change of signal propagation loss on the determination of signal source direction, a mobile phone signal location analysis method based on satellite navigation is proposed. From four aspects of the suddenness, destructiveness, social influence, and defensive difficulty of the earthquake, a portable mobile station is designed to extract the residual signal of the mobile phone through the GPS single difference model. Then, the average residual of mobile phone signals in the appointed area is calculated, and the root mean square of the mobile phone signals of each area is obtained. The mean square deviation is substituted into the two-difference equations of all seismic events, and the mobile phone signal intensity is solved. The positioning of mobile phone signals based on satellite navigation is realized by the angle of arrival measurement method. The collected data were analyzed to verify the ability of the system for searching in large-scale earthquake ruins. The experimental results show that the proposed method can search and locate a large range of mobile phones, and the signal source direction is stable.
Aiming at the problems in the current method of mobile phone signal location, i.e., the limitation of location distance and the great influence of the change of signal propagation loss on the determination of signal source direction, a mobile phone signal location analysis method based on satellite navigation is proposed. From four aspects of the suddenness, destructiveness, social influence, and defensive difficulty of the earthquake, a portable mobile station is designed to extract the residual signal of the mobile phone through the GPS single difference model. Then, the average residual of mobile phone signals in the appointed area is calculated, and the root mean square of the mobile phone signals of each area is obtained. The mean square deviation is substituted into the two-difference equations of all seismic events, and the mobile phone signal intensity is solved. The positioning of mobile phone signals based on satellite navigation is realized by the angle of arrival measurement method. The collected data were analyzed to verify the ability of the system for searching in large-scale earthquake ruins. The experimental results show that the proposed method can search and locate a large range of mobile phones, and the signal source direction is stable.
引文
[1] 唐诗洋,疏学明,申世飞,等.基于伪基站的地震废墟人员搜寻定位技术[J].清华大学学报:自然科学版,2016(12):1278-1283.TANG Shiyang,SHU Xueming,SHEN Shifei,et al.Earthquake Ruin Personnel Search And Location Technology Based on Pseudo Base Station[J].Journal of Tsinghua University (Science and Technology),2016(12):1278-1283.
[2] 周德山,韩文功,李振春,等.基于相对走时计算的地面微地震监测SET定位算法[J].地球物理学进展,2016,31(6):2495-2500.ZHOU Deshan,HAN Wengong,LI Zhenchun,et al.Source Location Method for Surface Microseismic Monitoring Based on Relative Traveltime Calculation[J].Progress in Geophysics,2016,31(6):2495-2500.
[3] 王纪程,陈祖斌,江海宇,等.基于极快速模拟退火与网格逐次剖分的微地震定位算法[J].科学技术与工程,2017,17(33):248-252.WANG Jicheng,CHEN Zubin,JIANG Haiyu,et al.Based on Successive very Fast Simulated Annealing and the Grid Subdivision of Micro Seismic Localization Algorithm Research[J].Science Technology and Engineering,2017,17(33):248-252.
[4] 薛艳,刘杰,宋治平,等.汶川地震前地震活动特征的普遍性及其机理探讨[J].地球物理学报,2018,61(5):1891-1906.XUE Yan,LIU Jie,SONG Zhiping,et al.On the Universality and Mechanism Interpretation of the Seismicity Characteristics before the 2008 Wenchuan MS8.0 Earthquake[J].Chinese Journal of Geophysics,2018,61(5):1891-1906.
[5] 华建兵,吴韬,蒋敏,等.大震下村镇建筑砌体结构的抗震性能数值分析[J].地震工程学报,2017,39(1):52-57.HUA Jianbing,WU Tao,JIANG Min,et al.Numerical Analysis of Seismic Behaviors of Masonry Structures in Village Buildings during Strong Earthquakes[J].Northwestern Seismological Journal,2017,39(1):52-57.
[6] 蔡宏,程昌玉,秦建峰,等.便携式雷达现场测试和诊断移动平台设计及应用[J].气象科技,2017,45(5):938-943.CAI Hong,CHENG Changyu,QIN Jianfeng,et al.Design and Application of a Portable Platform for Radar Field Test and Diagnosis[J].Meteorological Science and Technology,2017,45(5):938-943.
[7] 张涛,张颖江.移动通信网络异常信号优化识别研究[J].计算机仿真,2017,34(3):309-312.ZHANG Tao,ZHANG Yingjiang.Mobile Communication Network Anomaly Signal Optimization Identification Study[J].Computer Simulation,2017,34(3):309-312.
[8] 赵龙,高井祥,李增科,等.基于CEEMD-Wavelet-SavGol模型的GPS多路径修正算法[J].测绘通报,2017(11):1-5.ZHAO Long,GAO Jingxiang,LI Zengke,et al.GPS Multipath Correction Algorithm Based on CEEMD-Wavelet-SavGol Model[J].Bulletin of Surveying and Mapping,2017(11):1-5.
[9] 尹忠刚,李国银,张延庆,等.STEKF协同残差归一化的感应电机转速辨识方法[J].电工技术学报,2017,32(5):86-96.YIN Zhonggang,LI Guoyin,ZHANG Yanqing,et al.A Speed Estimation Method Based on Strong Tracking Extended Kalman Filter with Normalized Residuals for Induction Motors[J].Transactions of China Electrotechnical Society,2017,32(5):86-96.
[10] 时盛春.地震灾后区域无人机GPS遥感定位技术研究[J].地震工程学报,2018,40(2):350-355.SHI Shengchun.GPS Remote Sensing Positioning Technology for Unmanned Aerial Vehicle in Post-Earthquake Area[J].China Earthquake Engineering Journal,2018,40(2):350-355.
[11] 黄丽辉.局部二值平均熵模式与深度残差网络的人群密度估计[J].科学技术与工程,2018,18(27):162-169.HUANG Lihui.A Novel Algorithm for Crowd Density Estimation Based on Entropy LBP Feature and Deep Residual Network[J].Science Technology and Engineering,2018,18(27):162-169.
[12] 王云宏.基于DIRECT算法的微震震源快速网格搜索定位方法研究[J].地球物理学进展,2016,31(4):1700-1708.WANG Yunhong.Grid-Search Method on Micro-Seismic Source Fast Location Based on DIRECT Algorithm[J].Progress in Geophysics,2016,31(4):1700-1708.
[13] 陈明,武军郦,高士民,等.卫星导航定位基准站网系统测试技术分析[J].测绘科学,2018,43(5):143-148.CHEN Ming,WU Junli,GAO Shimin,et al.Technical Analysis of System Testing for Satellite Navigation Reference Stations[J].Science of Surveying and Mapping,2018,43(5):143-148.
[14] 金星,杨文东,李山有,等.一种新地震定位方法研究[J].地震工程与工程振动,2007,27(2):20-25.JIN Xing,YANG Wendong,LI Shanyou,et al.A New Seismic Location Method[J].Journal of Earthquake Engineering and Engineering Vibration,2007,27(2):20-25.
[15] 程麦理,李青宁,苗如松,等.强震作用下超高桥墩动力稳定性理论研究[J].地震工程学报,2016,38(3):360-365.CHENG Maili,LI Qingning,MIAO Rusong,et al.Theoretical Study on the Dynamic Stability of Super-High Bridge Piers under Strong Earthquakes[J].China Earthquake Engineering Journal,2016,38(3):360-365.
[16] 吴桐,战兴群.基于AD9361射频捷变收发器的GPS伪卫星设计[J].电讯技术,2019,59(2):162-166.WU Tong,ZHAN Xingqun.Design of a GPS Pseudolite Based on AD9361 RF Agile Transceiver[J].Telecommunication Engineering,2019,59(2):162-166.
[17] 黄响,唐世阳,张林让,等.一种基于高效FrFT的LFM信号检测与参数估计快速算法[J].电子与信息学报,2017,39(12):2905-2911.HUANG Xiang,TANG Shiyang,ZHANG Linrang,et al.A Fast Algorithm of LFM Signal Detection and Parameter Estimation Based on Efficient FrFT[J].Journal of Electronics & Information Technology,2017,39(12):2905-2911.
[2] 周德山,韩文功,李振春,等.基于相对走时计算的地面微地震监测SET定位算法[J].地球物理学进展,2016,31(6):2495-2500.ZHOU Deshan,HAN Wengong,LI Zhenchun,et al.Source Location Method for Surface Microseismic Monitoring Based on Relative Traveltime Calculation[J].Progress in Geophysics,2016,31(6):2495-2500.
[3] 王纪程,陈祖斌,江海宇,等.基于极快速模拟退火与网格逐次剖分的微地震定位算法[J].科学技术与工程,2017,17(33):248-252.WANG Jicheng,CHEN Zubin,JIANG Haiyu,et al.Based on Successive very Fast Simulated Annealing and the Grid Subdivision of Micro Seismic Localization Algorithm Research[J].Science Technology and Engineering,2017,17(33):248-252.
[4] 薛艳,刘杰,宋治平,等.汶川地震前地震活动特征的普遍性及其机理探讨[J].地球物理学报,2018,61(5):1891-1906.XUE Yan,LIU Jie,SONG Zhiping,et al.On the Universality and Mechanism Interpretation of the Seismicity Characteristics before the 2008 Wenchuan MS8.0 Earthquake[J].Chinese Journal of Geophysics,2018,61(5):1891-1906.
[5] 华建兵,吴韬,蒋敏,等.大震下村镇建筑砌体结构的抗震性能数值分析[J].地震工程学报,2017,39(1):52-57.HUA Jianbing,WU Tao,JIANG Min,et al.Numerical Analysis of Seismic Behaviors of Masonry Structures in Village Buildings during Strong Earthquakes[J].Northwestern Seismological Journal,2017,39(1):52-57.
[6] 蔡宏,程昌玉,秦建峰,等.便携式雷达现场测试和诊断移动平台设计及应用[J].气象科技,2017,45(5):938-943.CAI Hong,CHENG Changyu,QIN Jianfeng,et al.Design and Application of a Portable Platform for Radar Field Test and Diagnosis[J].Meteorological Science and Technology,2017,45(5):938-943.
[7] 张涛,张颖江.移动通信网络异常信号优化识别研究[J].计算机仿真,2017,34(3):309-312.ZHANG Tao,ZHANG Yingjiang.Mobile Communication Network Anomaly Signal Optimization Identification Study[J].Computer Simulation,2017,34(3):309-312.
[8] 赵龙,高井祥,李增科,等.基于CEEMD-Wavelet-SavGol模型的GPS多路径修正算法[J].测绘通报,2017(11):1-5.ZHAO Long,GAO Jingxiang,LI Zengke,et al.GPS Multipath Correction Algorithm Based on CEEMD-Wavelet-SavGol Model[J].Bulletin of Surveying and Mapping,2017(11):1-5.
[9] 尹忠刚,李国银,张延庆,等.STEKF协同残差归一化的感应电机转速辨识方法[J].电工技术学报,2017,32(5):86-96.YIN Zhonggang,LI Guoyin,ZHANG Yanqing,et al.A Speed Estimation Method Based on Strong Tracking Extended Kalman Filter with Normalized Residuals for Induction Motors[J].Transactions of China Electrotechnical Society,2017,32(5):86-96.
[10] 时盛春.地震灾后区域无人机GPS遥感定位技术研究[J].地震工程学报,2018,40(2):350-355.SHI Shengchun.GPS Remote Sensing Positioning Technology for Unmanned Aerial Vehicle in Post-Earthquake Area[J].China Earthquake Engineering Journal,2018,40(2):350-355.
[11] 黄丽辉.局部二值平均熵模式与深度残差网络的人群密度估计[J].科学技术与工程,2018,18(27):162-169.HUANG Lihui.A Novel Algorithm for Crowd Density Estimation Based on Entropy LBP Feature and Deep Residual Network[J].Science Technology and Engineering,2018,18(27):162-169.
[12] 王云宏.基于DIRECT算法的微震震源快速网格搜索定位方法研究[J].地球物理学进展,2016,31(4):1700-1708.WANG Yunhong.Grid-Search Method on Micro-Seismic Source Fast Location Based on DIRECT Algorithm[J].Progress in Geophysics,2016,31(4):1700-1708.
[13] 陈明,武军郦,高士民,等.卫星导航定位基准站网系统测试技术分析[J].测绘科学,2018,43(5):143-148.CHEN Ming,WU Junli,GAO Shimin,et al.Technical Analysis of System Testing for Satellite Navigation Reference Stations[J].Science of Surveying and Mapping,2018,43(5):143-148.
[14] 金星,杨文东,李山有,等.一种新地震定位方法研究[J].地震工程与工程振动,2007,27(2):20-25.JIN Xing,YANG Wendong,LI Shanyou,et al.A New Seismic Location Method[J].Journal of Earthquake Engineering and Engineering Vibration,2007,27(2):20-25.
[15] 程麦理,李青宁,苗如松,等.强震作用下超高桥墩动力稳定性理论研究[J].地震工程学报,2016,38(3):360-365.CHENG Maili,LI Qingning,MIAO Rusong,et al.Theoretical Study on the Dynamic Stability of Super-High Bridge Piers under Strong Earthquakes[J].China Earthquake Engineering Journal,2016,38(3):360-365.
[16] 吴桐,战兴群.基于AD9361射频捷变收发器的GPS伪卫星设计[J].电讯技术,2019,59(2):162-166.WU Tong,ZHAN Xingqun.Design of a GPS Pseudolite Based on AD9361 RF Agile Transceiver[J].Telecommunication Engineering,2019,59(2):162-166.
[17] 黄响,唐世阳,张林让,等.一种基于高效FrFT的LFM信号检测与参数估计快速算法[J].电子与信息学报,2017,39(12):2905-2911.HUANG Xiang,TANG Shiyang,ZHANG Linrang,et al.A Fast Algorithm of LFM Signal Detection and Parameter Estimation Based on Efficient FrFT[J].Journal of Electronics & Information Technology,2017,39(12):2905-2911.