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Laser beam scintillation with applications

Author: Larry C Andrews; Ronald L Phillips; Cynthia Y Hopen
Publisher: Bellingham, Wash. : SPIE Press, ©2001.
Series: SPIE monograph, PM99.
Edition/Format:   Print book : EnglishView all editions and formats
Summary:
Renewed interest in laser communication systems has sparked development of useful new analytic models. This book discusses optical scintillation and its impact on system performance in free-space optical communication and laser radar applications, with a detailed look at propagation phenomena and the role of scintillation on system behavior. Intended for practicing engineers, scientists, and students.
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Additional Physical Format: Online version:
Andrews, Larry C.
Laser beam scintillation with applications.
Bellingham, Wash. : SPIE Press, ©2001
(OCoLC)606036422
Online version:
Andrews, Larry C.
Laser beam scintillation with applications.
Bellingham, Wash. : SPIE Press, ©2001
(OCoLC)607681033
Document Type: Book
All Authors / Contributors: Larry C Andrews; Ronald L Phillips; Cynthia Y Hopen
ISBN: 0819441031 9780819441034
OCLC Number: 45862121
Description: xix, 375 pages : illustrations ; 26 cm.
Contents: Part I. Scintillation models --
Chapter 1. Optical wave propagation in random media: background review --
Introduction --
Optical properties of the atmosphere --
Atmospheric structure with altitude --
Absorption and scattering --
Optical turbulence --
Power spectrum models --
Gaussian-beam wave model --
Transmitter and receiver beam parameters --
Wave propagation in random media: methods of analysis --
Rytov approximation --
Extended Huygens-Fresnel principle --
Mutual coherence function: weak fluctuations --
Spatial coherence radius --
Mean irradiance --
Angle-of-arrival and image dancing --
Beam wander --
Mutual coherence function: strong fluctuations --
Mean irradiance --
Spatial coherence radius --
Effective beam parameters --
Scintillation index and covariance function --
Scintillation index: weak fluctuations --
Scintillation index: strong fluctuations --
Covariance function: weak fluctuations --
Aperture averaging of scintillation: weak fluctuations --
Paraxial ABCD optical systems --
Generalized Huygens-Fresnel integral --
Gaussian lens --
Image plane --
Double-passage waves --
Gaussian mirror --
Mutual coherence function --
Covariance function and scintillation index --
References. Chapter 2. Modeling optical scintillation --
Introduction --
Background on scintillation --
Models for refractive index fluctuations --
Physical model for amplitude fluctuations --
The modulation process --
Modified Rytov theory --
Scintillation index model --
Spatial filter functions --
Inner-scale effects --
Outer-scale effects --
Distribution models for the irradiance --
Lognormal distribution --
K distribution --
Lognormal-Rician distribution --
Gamma-gamma distribution --
References --
Chapter 3. Theory of scintillation: plane wave model --
Introduction --
Zero inner scale model --
Effective Kolmogorov spectrum --
Nonzero inner scale model --
Effective atmospheric spectrum --
Outer-scale effects --
Covariance function of irradiance --
Zero inner scale model --
Nonzero inner scale model --
Temporal spectrum --
Zero inner scale model --
Nonzero inner scale model --
Gamma-gamma distribution --
Comparison with simulation data --
References. Chapter 4. Theory of scintillation: spherical wave model --
Introduction --
Zero inner scale model --
Effective Kolmogorov spectrum --
Nonzero inner scale model --
Effective atmospheric spectrum --
Outer-scale effects --
Comparison with experimental data --
Covariance function of irradiance --
Gamma-gamma distribution --
Comparison with simulation data --
References --
Chapter 5. Theory of scintillation: Gaussian-beam wave model --
Introduction --
Radial component --
Effective beam parameters --
Asymptotic theory for the longitudinal component --
Zero inner scale model --
Nonzero inner scale model --
Outer-scale effects --
Comparison with simulation data --
References --
Chapter 6. Aperture averaging --
Introduction --
ABCD matrix formulation --
Aperture averaging factor: plane wave --
Zero inner scale --
Nonzero inner scale --
Outer-scale effects --
Asymptotic analysis --
Aperture averaging factor: spherical wave --
Zero inner scale --
Nonzero inner scale --
Outer-scale effects --
Comparison with experimental data --
Asymptotic analysis --
Aperture averaging factor: Gaussian-beam wave --
Zero inner scale --
Nonzero inner scale --
Outer-scale effects --
Temporal spectrum of irradiance fluctuations --
References. Part II. Applications --
Chapter 7. Laser communication systems --
Introduction --
Direct detection optical receivers --
Threshold detection in the absence of atmospheric turbulence --
Frequency of fades and surges --
Threshold detection in the presence of atmospheric turbulence --
Coherent detection optical receivers --
Threshold detection in the absence of atmospheric turbulence --
Frequency of fades and surges --
Threshold detection in the presence of atmospheric turbulence --
Spatial diversity receivers --
Array receivers in direct detection --
Aperture averaging --
Linear combining methods for coherent detection --
EG array receivers in coherent detection --
Bit error-rate (BER) performance --
Direct detection binary baseband signaling --
Coherent detection digital signaling --
References --
Chapter 8. Fade statistics for lasercom systems --
Introduction --
Probability of fade models --
Expected number of fades --
Lognormal model --
Gamma model --
Gamma-gamma model --
Terrestrial lasercom link --
Probability of fade --
Mean fade time --
Uplink/downlink slant paths --
Atmospheric model for Cn2 --
Spatial filter models --
Downlink from a satellite: plane wave model --
Scintillation index --
Covariance function --
Probability of fade --
Uplink to a satellite: spherical wave model --
Scintillation index --
Covariance function --
Probability of fade --
References. Chapter 9. Laser radar systems: scintillation of return waves --
Introduction --
Review of basic radar principles --
Range and Doppler-frequency shift --
Classification of targets --
Laser radar configuration --
Gaussian beam parameters --
Statistical characteristics of illumination beam --
Backscatter amplification effect --
Scintillation index --
Unresolved small target: spherical wave model --
Backscatter amplification effect --
Scintillation index: bistatic channel --
Scintillation index: monostatic channel --
Unresolved small target: Gaussian-beam wave model --
Backscatter amplification effect --
Scintillation index: bistatic channel --
Scintillation index: monostatic channel --
Finite diffuse surface: spherical wave model --
Backscatter amplification effect --
Scintillation index, part I --
Scintillation index, part II --
Threshold detection --
Direct detection --
Coherent detection --
Aperture averaging --
Experimental data for EG array receivers --
Data analysis for a single aperture: point target --
Data analysis for a single aperture: diffuse target --
Multiple apertures: diffuse target --
References. Chapter 10. Laser radar systems: imaging through --
Turbulence --
Introduction --
Review of linear shift-invariant systems --
Fourier transform analysis --
Coherent imaging systems --
Shift-invariance --
Impulse response and coherent transfer functions --
Incoherent imaging systems --
Targets --
Point spread function and modulation transfer function --
Target resolution --
Atmospheric effects --
Laser imaging radar --
Unresolved small target --
Total MTF of return wave --
Scintillation index of return wave --
Single pixel signal-to-noise ratio --
Finite rough target --
Propagation path characteristics --
Statistical model for target --
Total MTF of return wave --
Scintillation index of return wave --
Single pixel signal-to-noise ratio --
References --
Index.
Series Title: SPIE monograph, PM99.
Responsibility: Larry C. Andrews, Ronald L. Phillips, Cynthia Y. Hopen.

Abstract:

Discusses optical scintillation and its impact on system performance in free-space optical communication and laser radar applications. It is intended for practicing engineers and scientists who want  Read more...

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