Performance of Frequency Estimators for real time display of high PRF pulsed fibered Lidar wind map
نویسندگان
چکیده
Long range wind lidars based on high pulse repetition frequency (PRF) fiber laser require Doppler mean frequency estimators (MFE) that are reliable up to very low CNR, and fast enough for real time display of long range wind maps. A comparison of MFEs has been performed on accumulated spectra computed on experimental data from a high PRF pulsed fibered Lidar. MFEs (maximum, centroid, matched filter, maximum likelihood, polynomial fit) have been compared in terms of average error versus CNR and in terms of processing time. The wind speed errors have been estimated by the wind data spectrum method for various estimators.
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