Dual-frequency technique for Doppler wind lidar measurements

Jeremy T. Dobler; Bruce M. Gentry; John A. Reagan

doi:10.1117/12.452768

9 January 2002 Dual-frequency technique for Doppler wind lidar measurements

Jeremy T. Dobler, Bruce M. Gentry, John A. Reagan

Proceedings Volume 4484, Lidar Remote Sensing for Industry and Environment Monitoring II; (2002) https://doi.org/10.1117/12.452768
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

A variation of the direct detection Doppler Lidar method known as the edge technique is discussed. This new method uses a frequency-agile laser transmitter to alternate the outgoing laser pulse between the two edges of a high resolution Fabry-Perot etalon. The difference in sign of the two slopes of the edge allows the unwanted molecular return signal to be eliminated as a background error source. This technique is similar to that of the 'double-edge' technique, with the main advantage being reduced complexity and cost for the system. By eliminating the error in the wind velocity measurement due to the molecular return, transmitter powers, within the eye-safety range, may be utilized to measure winds within the planetary boundary layer (PBL) with reasonable accuracy for many applications.

Citation Download Citation

Jeremy T. Dobler, Bruce M. Gentry, and John A. Reagan "Dual-frequency technique for Doppler wind lidar measurements", Proc. SPIE 4484, Lidar Remote Sensing for Industry and Environment Monitoring II, (9 January 2002); https://doi.org/10.1117/12.452768

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