摘要
信号采集与回放系统通过虚拟仪器技术平台,利用Lab VIEW语言进行信号读取、播放、采集,通过播放存储的目标或环境噪声产生的震动和声音电信号,用播放的信号激励微震台,微震台的传感器重新进行数据采集,通过调整自适应滤波器参数,使得重新采集的信号逼近原读取信号。详细介绍了如何利用Lab VIEW语言编写的程序用于将存储数据调出读取、播放、采集,并对信号波形特点进行分析。
LabVIEW language based signal broadcast, acquisition and playback system uses virtual instruments tech- nology plafform--LabVIEW language to read signal, broadcast signal and acquire signal. Firstly, Labview program reads the signal related with the target and environment around that is stored in the disk, and then broadcasts these signal, the broadcasting signal drives a special device where there a sensor is laid to acquire the quaking signal that is produced by the device. The whole system adaptively adjusts the filter parameters, which makes the signal that is acquired by the senor simi- lar to the original reading signal that is stored in the disk infinitely.
出处
《电声技术》
2015年第6期49-53,69,共6页
Audio Engineering
