基于总体最小二乘的多麦克风阵列狙击手定位算法
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摘要
针对战场狙击手威胁日益增加的严峻现实,提出了一种基于总体最小二乘的多麦克风阵列狙击手定位算法。利用空间上随意摆放的多个线性麦克风阵列,通过枪口激波到达各阵列阵元的时延差及方位角,利用总体最小二乘算法对狙击手位置进行估计;并同时可以得到狙击手的射击时间及环境声速。通过仿真证明算法具有较高的测量精度。
Due to the grim reality of the increasing threat of the battlefield sniper,a sniper localization algorithm based on total least square( TLS) is presented by using multiple microphone arrays. Multiple linear microphone arrays are placed randomly in space. According to the time delay of arrival( TDOA) and bearing angle from gunshot muzzle blast to microphone arrays,TLS algorithm is used to estimate sniper location,gunshot time and sound velocity. Simulation shows that the algorithm has a high accuracy,and increases the measurement range.
Due to the grim reality of the increasing threat of the battlefield sniper,a sniper localization algorithm based on total least square( TLS) is presented by using multiple microphone arrays. Multiple linear microphone arrays are placed randomly in space. According to the time delay of arrival( TDOA) and bearing angle from gunshot muzzle blast to microphone arrays,TLS algorithm is used to estimate sniper location,gunshot time and sound velocity. Simulation shows that the algorithm has a high accuracy,and increases the measurement range.
引文
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2 Wu K,Reju V G,Khong A W H,et al.Swarm intelligence based particle filter for alternating talker localization and tracking using microphone arrays.IEEE/ACM Transactions on Audio Speech&Language Processing.New York:IEEE,2017:99
3 Borzino A M C R,Apolinário J A,Campos M L R D,et al.Signal enhancement for gunshot DOA estimation with median filters.Circuits&Systems.New York:IEEE,2015:1—4
4 Borzino^Angelo M C R,Apolinário J A,Campos M L R D.Robust DOA estimation of heavily noisy gunshot signals.IEEE International Conference on Acoustics,Speech and Signal Processing.New York:IEEE,2015:449—453
5 Paredes D M,Apolinario J A.Shooter localization using microphone arrays on elevated platforms.Central America and Panama Convention.New York:IEEE,2015:1—6
6 Calderon D M P,Apolinario J A.Shooter localization based on Do A estimation of gunshot signals and digital map information.IEEE Latin America Transactions,2015;13(2):441—447
7 Freire I L,Apolinário J A.GCC-based Do A estimation of overlapping muzzleblast and shockwave components of gunshot signals.Circuits and Systems.New York:IEEE,2011:1—4
8 Damarla T,Kaplan L M,Whipps G T.Sniper localization using acoustic asynchronous sensors.IEEE Sensors Journal,2010;10(9):1469—1478
9 Millet J,Balingand B.Latest achievements in gunfire detection systems.RTO-MP-SET-107 Battlefield Acoustic Sensing for ISR Applications,2006;26(2):3—5
10 Mazurek J,Barger J E,Brinn M.Boomerang mobile counter shooter detection system.Proceedings of SPIE,2005;5778:264—282
11 Emura S.Sound field estimation using two spherical microphone arrays.IEEE International Conference on Acoustics,Speech and Signal Processing.New York:IEEE,2017:1—2
12 Makinen T,Pertila P,Auranen P.Supersonic bullet state estimation using particle filtering.IEEE International Conference on Signal and Image Processing Applications.New York:IEEE,2009:150—155
13 吴松林,杨杰,林晓东,等.声定位系统中的弹道波信号分析及弹道矢量计算.探测与控制学报,2009;31(2):54—58Wu Songlin,Yang Jie,Lin Xiaodong,et al.Calculation of trajectory vector and analysis of shock wave signals in acoustic positioning system.Journal of Detection&Control,2009;31(2):54—58
14 蒋婷,刘建平,张一闻.基于多麦克风阵列的枪声定位算法研究.计算机应用与软件,2012;29(12):229—231Jiang Ting,Liu Jianping,Zhang Yiwen.Research on gunfire location algorithm based on multiple microphone arrays.Computer Applications and Software,2012;29(12):229—231
15 Simon G,Maroti M,Ledeczi A,et al.Sensor network-based countersniper system.Proceedings of 2nd Association Computing Machinery Conference on Embedded Networked Sensor Systems,Sen Sys’04 .New York:IEEE,2004:1—12
16 Maher R C.Audio forensic examination.IEEE Signal Processing Magazine,2012;3:229—231
17 Kay S C.Fundamentals of statistical signal processing:estimation theory.Englewood Cliffs:Prentice-Hall,1993:25—26
18 Volgyesi P,Balogh G,Nadas A,et al.Shooter localization and weapon classification with soldier-wearable networked sensors.Proceeding of the 5th International Conference on Mobile Systems,Mobi Sys’07,Puerto Rico.New York:IEEE,2007:113—126