摘要
随着数字记录仪的快速发展,对冲击波波形数据进行分析和对参数进行自动提取的软件越来越受关注,但目前大部分测量系统性能指标提取不够准确,适应性不强,不同的试验需要采用不同的软件才能完成。在分析了硬阈值、软阈值小波去噪算法存在问题的基础上,构造了一个全新的阈值函数,提出高压冲击测量分析系统的体系结构,并通过IEC标准波形对其进行验证,结果十分理想。该冲击测量系统,可以实现冲击波形参数的自动提取和分析,并且在波形处理中显示出较强的优越性。
Along with the development of digital recording devices used in the high-voltage experiment fields,the analysis of waveform data of impulse wave and automatic pick-up of parameters have received more and more attention,but the current measuring system＇s veracity of capability index and adaptability are not very good,different experiment even need different software tools.This paper analyzes the problem of wavelet noise take-out algorithm for hard and soft threshold value,constructes a new threshold value function,test results show that this method can analyze impulse waveform parameters automatically,and has great advantages in waveform processing.
出处
《中国农村水利水电》
北大核心
2011年第3期136-139,共4页
China Rural Water and Hydropower
