DSP Algorithm and Its Simulation Study for CMF
LIU Feng-xin, ZHANG Yan-chuan, WANG Lei (Information Science and Technology Dept., Beijing Univ. of Chemical Technology, Beijing 100029, China)
Some new DSP algorithm and simulation method have been introduced, which is used for Coriolis Mass Flow meter (CMF) signal processing.This paper includes a Chirp-Z algorithm application for signal frequency detection initialization. Compared with the traditional method, Chirp-Z algorithm eliminates the leakage error caused by not-enough-point sampling, improves the precision of calculation and decreases the computing time.It also incluses a phase locking loop (PLL) simulation used for frequency tracking of CMF. After the simulation under the MATLAB environment, we can conclude that it is a feasible method to track the frequency and phase changes of noise-added signal of CMF, and meet some requirement of tracking precision.
【CateGory Index】： TH814.6