Phase Measurement About Adaptive Notch Filter Based on LMS Algorithm

Abstract

The phase difference of signal is an important measurement parameter in the application of electronic technology. In order to meet the requirements of real-time measurement of signal phase, the paper introduced the phase measurement simulation analysis about adaptive Notch filter based on LMS algorithm, and studies the influence of several parameters on the measuring result. Theoretical analysis and simulation results show that changing adaptive step length has evident influence on phase of test results. Thus coming to a conclusion, the phase measurement method can meet the requirements of real-time measurement of signal phase.