基于自适应陷波的涡街流量计信号处理系统

Adaptive Notch Filter-Based Signal Processor System of Vortex Flowmeter

本文介绍了以数字信号处理器 (DSP)为核心的实时处理系统 ,采用自适应陷波方法计算涡街流量计信号的频率。自适应陷波器只需估计一个参数。采用了DSP ,使得信号处理实时和系统小型化。实测结果说明 ,自适应陷波方法和实时处理系统是有效的。

A real time processing system based on a digital signal processor is described in this paper, and the signal frequency of vortex flowmeter is computed by means of an adaptive notch filtering method. There is only one parameter to be estimated in the adaptive notch filter. This system process signals in real time, and the system is small sized because it adopts a DSP. The testing results indicate that the adaptive notch filtering method and processing system are efficient.