Infrared Laser Velocimetry

Work at RSRE on the optical and signal processing techniques of CO 2 laser velocimetry is described together with recent applications at the Royal Aircraft Establishment Bedford and the Drax power station. The present capabilities of the method for remote sensing of the atmosphere in the contexts of study of atmospheric turbulence and wind shear, building wakes and pollution dispersal are outlined. The future potential for measurement from aircraft of true airspeed, shear warning and clear air turbulence is discussed.