计算机工程与应用2017，Vol.53Issue(16)：258-262,5.DOI:10.3778/j.issn.1002-8331.1602-0148
自适应去噪的地震数据采集系统设计
Design of seismic data acquisition system based on adaptive de-noising.
摘要
Abstract
Seismic data acquisition is the basis of earthquake observation and research. A design scheme about seismic data acquisition system based on high-speed data acquisition card NI USB-4432 and LabVIEW platform is proposed, including front-end conditioning circuit based on OP07 and LM224N, and data real-time acquisition, display and analysis system based on USB-4432 and LabVIEW platform. An adaptive wavelet threshold de-noising algorithm is presented to further improve the quality of the signal, the algorithm can de-noise adaptively according to the intensity of the collected signal, improve the Signal-to Noise Ratio(SNR)of the signal. Practical tests show that, the system is stable and reliable. Compared with the traditional threshold de-noising algorithm, the new algorithm can effectively improve the SNR. The experimental results show that the designed system has excellent de-noising performance and possesses a higher applied value.关键词
小波阈值去噪/地震数据采集/LabVIEWKey words
wavelet threshold de-noising/seismic data acquisition/LabVIEW分类
信息技术与安全科学引用本文复制引用
孟娟,洪利,程丽娜,吴燕雄..自适应去噪的地震数据采集系统设计[J].计算机工程与应用,2017,53(16):258-262,5.基金项目
中央高校基本科研业务费专项资金(No.20150204) （No.20150204）
中国地震局星火科技计划项目(No.XH14072). （No.XH14072）
