The Coincidence Tracker: Electronic Equipment for a Time-of-Flight Wind-Speed Measurement System

The electronic part of a laser-beam measuring system for wind velocity is described. Pulses of light scattered from aerosols are treated, first in a pair of adaptive filters, then in a tracker that calculates the wind velocity on-line while applying some knowledge about the velocity to be expected on the basis of preceding measurements. Practical measurements with the system are compared with traditional technique.