Temperature profiling of the atmosphere by filtered rayleigh scattering

Anuj Rekhy, Mikhail N. Shneider, Richard B. Miles

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

This paper discusses calculations related with the backscattered number of photons for a laser shot down at different frequencies from an aircraft. We show profiles for Rayleigh-Brillouin backscattered signals from different heights in atmosphere. A measurement technique is investigated that uses a rubidium vapor filter maintained at different temperatures. The transmission profiles of rubidium vapor filters are studied to maximize the measurement performance. This is further investigated to determine atmospheric temperature, wind velocity and H2O levels from Rayleigh-Brillouin backscattered signals. The width of the Rayleigh-Brillouin backscattered signal is proportional to the temperature from the height of scattering, the Mie scattering peaks from particle scattering are shifted in frequency corresponding to the wind velocity along the direction of laser beam and the tails of the Rayleigh-Brillouin backscattered signals are broadened depending upon the concentration of the H2O in atmosphere.

Original languageEnglish (US)
Title of host publication2018 Aerodynamic Measurement Technology and Ground Testing Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105616
DOIs
StatePublished - 2018
Event34th AIAA Aerodynamic Measurement Technology and Ground Testing Conference, 2018 - Atlanta, United States
Duration: Jun 25 2018Jun 29 2018

Publication series

Name2018 Aerodynamic Measurement Technology and Ground Testing Conference

Conference

Conference34th AIAA Aerodynamic Measurement Technology and Ground Testing Conference, 2018
Country/TerritoryUnited States
CityAtlanta
Period6/25/186/29/18

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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