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Speckle noise in direct-detection lidar systemsThe speckle noise is evaluated from some typical lidar systems. The governing equations are summarized. The mutual intensity function of the speckle pattern is calculated in terms of the laser radiation modes. Typical laser pulses are modeled and simplified expressions for the speckle noise power are derived. The signal-to-speckle-noise ratios for some proposed lidar systems are evaluated.
Document ID
19790004261
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Gardner, C. S. (Illinois Univ. Urbana-Champaign, IL, United States)
Mecherle, G. S. (Illinois Univ. Urbana-Champaign, IL, United States)
Date Acquired
September 3, 2013
Publication Date
April 1, 1978
Subject Category
Lasers And Masers
Report/Patent Number
RRL-PUBL-495
NASA-CR-157936
Report Number: RRL-PUBL-495
Report Number: NASA-CR-157936
Accession Number
79N12432
Funding Number(s)
CONTRACT_GRANT: NSG-5049
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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