一种高精度的超声波微地形探测系统的研究  

Study on ultrasonic exploration system of tiny terrain with high precision

作　　者：罗柏文[1] 卜英勇[1] 赵海鸣[1] 夏毅敏[1] 史春雪[1] 

机构地区：[1]中南大学机电工程学院,湖南长沙410083

出　　处：《传感器与微系统》2007年第7期58-60,66,共4页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(50474052)

摘　　要：利用Morlet小波信号包络和高斯函数曲线及能量相关性方法对拟设计的微地形探测系统接收到的超声波回波信号进行分析与计算,能准确获得回波源的空间位置。并与传统的单波束多探头微地形探测系统进行对比。实验结果表明:拟设计的探测系统在探测精度、可靠性及工作效率等方面均高于传统的单波束多探头探测系统。The envelope method of signal based on the Morlet wavelet as well as the relativity methods based on the curve of Gauss function and energy is used to analyze and calculate that the simulative exploration system of tiny terrain incepting the returning echo of uhrasonic ,and the spatial position of echo headstream can be attained accurately. By means of validating on the lab, the simulative exploration system is all higher than the traditional single-beam multi-transducer exploration system on the sides of precision,reliability and efficiency etc.

关 键 词：MORLET小波 高斯函数 能量 微地形 超声波 

分 类 号：TB559[理学—物理]