基于LabVIEW的多通道槽波地震数据采集系统  

Multichannel In-seam Seismic Data Acquisition System Based on LabVIEW

作　　者：张法全[1,2] 黄三[1] 叶金才[1] 王国富[1] 王小红[1] 

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004 [2]广西无线宽带通信与信号处理重点实验室,广西桂林541004

出　　处：《仪表技术与传感器》2017年第6期59-63,共5页Instrument Technique and Sensor

基　　金：国家自然科学基金项目(61362020;61540040);桂林电子科技大学研究生教育创新计划资助项目(2016YJCX78)

摘　　要：在槽波地震勘探实验当中,准确地采集和存储地震数据是至关重要的。文中介绍了一种基于虚拟仪器(Lab VIEW)的地震数据采集系统,将三通道数据采集、数据解析、波形显示、存储及数据回放集成在一起,解决了以往实现多通道同步采集十分困难的问题。采用了STM32的USB虚拟串口,提高了接口的传输速率;采用了多线程技术和队列技术,解决了通道之间的同步问题;采用了基于ParksMc Clellan算法的FIR滤波器对信号进行处理,消除了外部噪声信号的干扰。实验结果表明,该系统采集到的信号同步性能好、信噪比高、失真度小。In the experiment of in-seam seismic exploration, it is very necessary to acquire and store the seismic data accurately. This paper introduced a seismic data acquisition system based on LabVIEW. The three channels data acquiring, data analy sis, waveform displaying, Storage and data playback were integrated within this platform, and data synchronization realization is no longer a difficult problem. The USB virtual serial port of STM32 was adopted, which improved the data transmission rate of interface. The multi-thread technology and queue technology was adopted to realize multi-channel synchronized acquisition. The FIR digital filter based on Parks-McClellan algorithm was adopted to eliminate the disturbances of external noise. The experimental results indicate that the collected signal has good synchronization performance ,high SNR and small distortion.

关 键 词：槽波地震勘探 虚拟仪器 USB虚拟串口 多线程 队列 

分 类 号：TD166[矿业工程—矿山地质测量] TP274[自动化与计算机技术—检测技术与自动化装置]