双路音频采集系统及相关算法在漏水探测技术中的应用  

Application of Two-way Sound Signal Sampling System and the Correlation Algorithm in Water Leakage Survey Technology

作　　者：郭改枝[1] 铁勇[2] 俞宗佐[2] 

机构地区：[1]内蒙古师范大学计算机与信息工程学院,呼和浩特010022 [2]内蒙古大学电子信息工程学院,呼和浩特010021

出　　处：《内蒙古大学学报（自然科学版）》2008年第6期672-675,共4页Journal of Inner Mongolia University：Natural Science Edition

基　　金：国家自然科学基金(60772166);内蒙古自然科学基金(200711020811)资助项目

摘　　要：利用有源传感器设计了漏水检测探头,实现了两路音频信号实时采样及频域、时域相关算法,采用C语言及汇编语言实现了系统软件设计.实验结果表明,在漏水探测应用中频域相关定位算法具有较快的处理速度,但是时域相关定位算法具有较高的精度.The water leakage examination probe head is designed by the active sensor ,and twoway sound signal real-time sampling and the correlation algorithm with frequency domain and time domain are readized. The software program design of the system is completed using assembly language in conjunction with C code. The experimental result indicats that the fast correlation localization algorithm has a quicker processing speed in the water leakage survey application,but the time domain direct correlation localization algorithm has a higher precision.

关 键 词：声音传感器 DSP 时域相关 频域相关 

分 类 号：TN911.75[电子电信—通信与信息系统]