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Coherent Doppler lidar signal covariance including wind shear and wind turbulenceThe performance of coherent Doppler lidar is determined by the statistics of the coherent Doppler signal. The derivation and calculation of the covariance of the Doppler lidar signal is presented for random atmospheric wind fields with wind shear. The random component is described by a Kolmogorov turbulence spectrum. The signal parameters are clarified for a general coherent Doppler lidar system. There are two distinct physical regimes: one where the transmitted pulse determines the signal statistics and the other where the wind field dominates the signal statistics. The Doppler shift of the signal is identified in terms of the wind field and system parameters.
Document ID
19940009250
Document Type
Contractor Report (CR)
Authors
Frehlich, R. G. (Colorado Univ. Boulder, CO, United States)
Date Acquired
September 6, 2013
Publication Date
September 1, 1993
Subject Category
METEOROLOGY AND CLIMATOLOGY
Report/Patent Number
NASA-CR-194492
NAS 1.26:194492
Funding Number(s)
CONTRACT_GRANT: NAG8-253
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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