基于九元立体阵的温度补偿声学定位算法  

Temperature compensation acoustic localization algorithm based on nine-element stereo array

作　　者：崔林林 崔卫丽 CUI Linlin;CUI Weili(School of Mechatronics Engineering,Zhongyuan University of Technology,Zhengzhou 450007,China;School of Computer Science,Zhongyuan University of Technology,Zhengzhou 450007,China)

机构地区：[1]中原工学院机电学院,河南郑州450007 [2]中原工学院计算机学院,河南郑州450007

出　　处：《传感器与微系统》2020年第8期145-147,共3页Transducer and Microsystem Technologies

摘　　要：由于基于到达时间差(TDOA)声学定位算法具有运算量小、定位精度高、实时性好等优点,目前应用较为广泛。在基于到达时延差的声学定位算法中,温度是对定位精度影响较大的主要外在因素。经研究发现在温度等于25℃时,声源的区域误差均值最小,且声源的区域误差均值随温度变化呈现单调变化。基于此,提出一种基于九元立体阵的温度补偿声学定位算法。经仿真证明:该算法可有效降低温度对定位精度的影响。Due to the advantages of small computational complexity,high positioning precision,and good real-time performance,the acoustic localization algorithm based on time-difference-of-arrival(TDOA)is widely used.The temperature is one major external factor which affects the localization precision greatly in acoustic localization algorithm based on TDOA.It is found that the regional error mean of the acoustic source is the smallest when the temperature is 25℃.And the regional errors mean of the acoustic source change monotonically with temperature.A temperature compensation acoustic localization algorithm based on nine-element stereo array is presented.The simulation results show that the algorithm can effectively reduce effect of temperature on localization precision.

关 键 词：声学定位 到达时间差(TDOA) 温度补偿 定位精度 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TN911.72[自动化与计算机技术—控制科学与工程]