Detection method of Doppler signals as measured by Laser Doppler Anemometry

摘要

PURPOSE: A method for detecting Doppler signals measured by an LDA(Laser Doppler Anemometry) is provided to measure the velocity of fluid using high quality Doppler signals. CONSTITUTION: A reference level for detecting Doppler signals for the fluid velocity measurement is set up among Doppler signals measured from an LDA(S100). The Doppler signal measured from the LDA is not dimensioned(S200). A candidate group to satisfy the reference level among the Doppler signals which are not dimensioned is detected(S300). The Doppler signal to satisfy the reference level based on the detected candidate group is detected, and whether the detected Doppler signal is suitable for fluid velocity measurement or not is verified(S400).