摘要
针对抛撒无线传声器节点定位的问题,提出了一种利用已知位置声源进行自定位的方法,原理上是时差定位方法的反向解算,利用传声器节点被动接收目标声源发出的声音,计算到达各传声器的时间差对目标进行定位。如果已知目标声源的位置坐标,也可反推接收传声器的位置坐标。实际的外场试验测试表明,该方法能够准确计算传声器节点的位置,具有一定的实际应用价值。
In view of the problem of locating the wireless microphone node,a method of self-locating by using the known position sound source is proposed,which is the reverse solution of time difference location method in principle.Using the microphone node to passively receive the sound from the target sound source,calculating the time difference to reach each microphone can locate the target,knowing the position coordinates of the target sound source,and can also reversely deduce the received transmission.Finally,through the actual field test,the conclusion shows that the method can accurately calculate the location of microphone nodes,which has a certain practical value.
作者
刘佳
王志峰
赖东林
LIU Jia;WANG Zhifeng;LAI Donglin(CETC No.3 Research Institute,Beijing 100015,China)
出处
《电声技术》
2020年第5期47-49,54,共4页
Audio Engineering
关键词
无线传声器节点
自定位
时差定位
爆炸声波
wireless microphone node
self-locating
time difference location method
explosion sound wave
