摘要
针对无线传感网络节点音频定位过程中声音到达时刻难于准确估计的不足,提出利用互相关算法来实现节点定位,并对定位结果进行修正,试验结果表明,该方法能得到很高的定位精度,在距离45m的范围内,误差小于0.5m。
Because it is difficult to estimate the arrival time of the audio in the node location, a node location algorithm using generalized cross correlation has been discussed. Using this algorithm, we revise the location result. The experiments show that this method can improve the accuracy of location result, and the estimate error is less than 0. 5m within 45m.
出处
《传感技术学报》
CAS
CSCD
北大核心
2009年第8期1150-1153,共4页
Chinese Journal of Sensors and Actuators
基金
国家863计划资助(2006AA040101)
关键词
节点定位
互相关
时延
nodes location
generalized cross correlation
time delay
