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Optimized laser turrets for minimum phase distortionAn analysis and computer program which optimizes laser turret geometry to obtain minimum phase distortion is described. Phase distortion due to compressible, inviscid flow over small perturbation laser turrets in subsonic or supersonic flow is calculated. The turret shape is determined by a two dimensional Fourier series; in a similar manner, the flow properties are given by a Fourier series. Phase distortion is calcualted for propagation at serveral combinations of elevation and azimuth angles. A sum is formed from the set of values, and this sum becomes the objective function for an optimization computer program. The shape of the turret is varied to provide minimum phase distortion.
Document ID
19800017103
Document Type
Conference Paper
Authors
Vanderplaats, G. N. (NASA Ames Research Center Moffett Field, CA, United States)
Fuhs, A. E. (Naval Postgraduate School Pasadena, United States)
Blaisdell, G. A. (Calif. Inst. of Tech.)
Date Acquired
August 10, 2013
Publication Date
April 1, 1980
Publication Information
Publication: Proc. of the Aero-Optics Symp. on Electromagnetic Wave Propagation from Aircraft
Subject Category
FLUID MECHANICS AND HEAT TRANSFER
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19800017091Analytic PrimaryProceedings of the Aero-Optics Symposium on Electromagnetic Wave Propagation from Aircraft