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Remote detection of trailing vortices, task 3, modification 3The operation of a frequency tracker for use with the laser Doppler velocimeter (LDV) is reported. Topics discussed include: laser beam profile, lens matching, and LDV resolution data. It is concluded that the LDV provides good ground wind signals. The loss in sensitivity of the cavity system at high frequencies is partly compensated by an increase in the scattering cross section of the atmosphere due to dust.
Document ID
19720004726
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Fridman, J. (Raytheon Co. Sudbury, MA, United States)
Harris, C. (Raytheon Co. Sudbury, MA, United States)
Jelalian, A. (Raytheon Co. Sudbury, MA, United States)
Keene, W. (Raytheon Co. Sudbury, MA, United States)
Meister, K. (Raytheon Co. Sudbury, MA, United States)
Miller, C. (Raytheon Co. Sudbury, MA, United States)
Sonnenschein, C. (Raytheon Co. Sudbury, MA, United States)
Date Acquired
August 6, 2013
Publication Date
June 17, 1971
Subject Category
Instrumentation And Photography
Report/Patent Number
ER71-4233
NASA-CR-121034
Report Number: ER71-4233
Report Number: NASA-CR-121034
Accession Number
72N12375
Funding Number(s)
CONTRACT_GRANT: NAS8-30512
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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