基于虚拟仪器的声场可视化系统  

An Acoustic Field Visualization System Based on Virtual Instruments

作　　者：李加庆[1] 陈进[1] 刘先[1] 薛伟飞[1] 陈延太[1] 

机构地区：[1]上海交通大学振动,冲击,噪声国家重点实验室,上海200240

出　　处：《计算机工程与应用》2006年第24期219-221,共3页Computer Engineering and Applications

基　　金：国家自然科学基金重点资助项目(编号:50335030);日本Fujitec公司资助项目

摘　　要：基于虚拟仪器技术设计与实现了一种用于声场可视化的声信号采集与处理系统。该系统的功能包括声压信号采集和预处理,加载重建算法进行声场重建以及结果的可视化表示。系统硬件部分包括传声器阵列、数据采集卡和控制计算机。软件设计应用虚拟仪器的概念,并采用LabVIEW和MATLAB混合编程。通过实验测试,验证了该系统的实用性。The design and implementation of an acoustic signal acquisition and processing system used for acoustic field visualization is presented in this paper.Its functions include acoustic signal acquisition and pre-processing,reconstruction of acoustic field with a particular algorithm and visualization of results.Its hardware is consisted of a microphone array, data acquisition cards and a PC.The concept of virtual instruments is adopted in the software design.The software is developed under the platforms of LabVIEW and MATLAB The utility of this system is tested with experiments.

关 键 词：数据采集与处理 声场重建 声场可视化 虚拟仪器 

分 类 号：TP31[自动化与计算机技术—计算机软件与理论]