摘要
将小波变换用于涡街流量计,介绍了基于离散小波变换和连续小波变换功率谱估计的信号处理方法,给出了仿真步骤与结果,并讨论其特点,从而设计了基于DSP的信号处理系统。研究中所用方法适用于其它流量计,基于DSP的信号处理系统具有功能强、速度快及可靠性高等优点。
Wavelet transformation is adopted in this paper,and the basic principles of discrete wavelet transformation and power spectrum estimation based on continuous wavelet transformation are given. The simulation steps and results are presented,and the characteristics of the two methods discussed. The signal processing system based on the digital signal processor(DSP) is designed which has the characteristics of powerful functions,speediness and higher reliability. The methods used in this paper is suitable to other flowmeters.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
2002年第6期1130-1134,共5页
Journal of Hefei University of Technology：Natural Science
基金
高等学校骨干教师资助计划项目
关键词
系统设计
涡街流量计
信号处理
离散小波变换
连续小波变换
功率谱估计
vortex flowmeter
signal processing
discrete wavelet transformation
continuous wavelet transformation
power spectrum estimation
