Patent ID: 8072584
Filing Date: 2011-12-06
Classification: F03D,F05B,G01N,G01P,G01S,Y02A,Y02E

Abstract:
1. A method for remotely sensing air, comprising: generating laser radiation with a tunable laser; splitting the laser radiation into a projected component and a control component; converting the control component into one or more electronic control signals; projecting the projected component into the air to induce scattered radiation; receiving a portion of the scattered radiation as backscattered radiation; converting the backscattered radiation into one or more electronic backscattered radiation signals, including converting a first portion of the backscattered radiation to an unfiltered backscattered electronic signal, filtering at least a second portion of the backscattered radiation using an optical notch filter to form a filtered portion, and converting the filtered portion to a filtered backscattered electronic signal; processing the one or more electronic control signals and the one or more electronic backscattered radiation signals to determine Doppler shift; and processing the Doppler shift to determine wind speed.