改进LMS算法降噪的涡街流量测量系统

LMS Algorithm Based on Improved Noise of Vortex Flow Measurement System

针对煤矿井下突水复杂多变的特点,在现有技术的基础上提出一种改进LMS算法降噪的涡街流量测量系统更加精确的测量井下不同流体流动情况。通过改变LMS算法的步长将噪声降到最低,使得涡街流量计对流量的测量更加准确。同时对该算法与固定步长LMS算法的测速性能进行了比较,并通过Matlab仿真证实在实际应用中该系统确实有很好降噪性能。

Aiming at the coal mine water inrush complex features an improved LMS algorithm noise vortex flow measurement systems are more accurate measurements of downhole fluid flow conditions differ based on existing technologies. By changing the step size LMS algorithm to minimize the noise, making the measurement of the flow rate of the vortex flowmeter is more accurate. At the same time the algorithm and speed performance fixed step LMS algorithm were compared and confirmed by Matlab simulation in the practical application of the system does have a good noise performance.