基于小波分析的弱信号检测及其电子测量系统应用  

Weak signal detection based on wavelet analysis and its application in electronic measurement system

作　　者：乔彦超[1] 

机构地区：[1]河南省科学院应用物理研究所有限公司,河南郑州450008

出　　处：《电子设计工程》2017年第9期54-58,共5页Electronic Design Engineering

摘　　要：对于信号测量系统,从复杂环境中提取出弱信号一直是研究的重点。文中针对从强噪声中提取微弱信号的问题,在利用小波分析法进行数据处理分析的基础上,通过研究信号和噪声在小波变换后的情况,并根据频谱的相关信息,提出新的阈值处理算法。仿真实验证明了所提算法的正确性和有效性。在此基础上搭建了一个电子测量系统进行相关的信号处理,并利用该系统验证了新算法的性能。For the signal measurement system, to extract a weak signal from a complex environment it has been the focus of the study. The paper for the extraction of weak signal from strong noise problems in the data processing and analysis using wavelet analysis method, based on the research of signal and noise in the case of wavelet transform and the spectral information, propose new thresholding algorithm . The simulation results show the correctness and effectiveness of the proposed algorithm. On this basis, to build an eleetronie measurement system associated signal processing, and use the system to verify the performance of the new algorithm.

关 键 词：小波分析 信号测量 电子测量系统 

分 类 号：TN99[电子电信—信号与信息处理]