A Weak Signals De-Noising Method Based On Virtual Instrument Technology

摘要：

A de-noising method for obtaining the periodical weak signals in strong noised backgrounds was investigated in this paper. The virtual instrument (VI) technology based on the mixed programming between LABVIEW and MATLAB was employed to realize the method. First, the signal-to-noise ratio (SNR) was improved by accumulation and equilibration (A&E) process; second, the noise was minimized again by wavelet de-noising. The simulation results indicate that the SNR was improved from -13.55dB to 7.94dB. This de-noising method was implemented totally by software without any hardware accumulation system.

关键词： VI A&E mixed programming weak signals SNR

作者: Wei Yusen Zhu Xinya Wang Hua Yang Guosheng

作者单位: Department of Biomedical Engineering,the Fourth Military Medical University,Xian 710032 China

会议类型: 国际会议

会议名称: 第八届国际电子测量与仪器学术会议(Proceedings of 2007 8th International Conference on Electronic Measurement & Instruments)

会议地点: 西安

会议语种:英文

在线出版日期: 2007-08-16（万方平台首次上网日期，不代表论文的发表时间）