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洋書 | 技術書

Field Guide to Adaptive Optics, Second Edition
商品コード: 9780819490179

Field Guide to Adaptive Optics, Second Edition

販売価格(税込) 4,830 円
ポイント: 48 Pt
個  数

カゴに入れる

Robert K. Tyson; Benjamin W. Frazier
142 pages; Spiral Bound
2012/4/13
FG24

詳細

This Field Guide provides a summary of the methods for determining the requirements of an adaptive optics system, the performance of the system, and the requirements for the components of the system. Many of the expressions are in the form of integrals, in which case the authors show the results graphically for a variety of practical values. This second edition has a greatly expanded presentation of adaptive optics control system design and operation. Discussions of control models are accompanied by various recommendations for implementing the algorithms in hardware.

Sample Pages(PDF)

Glossary
Introduction
 Conventional Adaptive Optics System
 Image Spread with Atmospheric Turbulence
 The Principle of Phase Conjugation
 Point Spread Function for an Astronomical Telescope
Modeling the Effect of Atmospheric Turbulence
 Fried's Coherence Length
 Isoplanatic Angle
 Kolmogorov Model
 Atmospheric Turbulence Models
 Coherence Length for Various Wavelengths and Turbulence Models
 Greenwood Frequency
 Wind Models
 Scintillation
 Zernike Polynomials
 Legendre Polynomials
 Angle of Arrival (Tilt) Fluctuations (Image Motion)
 Modulation Transfer Function
Beam Propagation
 System Performance Estimation
 Modal and Zonal Fitting Error
 Wavefront Sensors
 Partial Correction
 Shack-Hartmann Wavefront Sensor and Error
 Shack-Hartmann Lenslet Array Selection
 Curvature Wavefront Sensor and Error
 Pyramid Wavefront Sensor and Error
Deformable Mirrors
 Photodiodes
 Photodiode Noise
 Lateral-Effect Position-Sensing Detectors
 Quad Cells
 Noise Equivalent Angle
 The Strehl Ratio: Laser-Beam Propagation to the Far Field with Wavefront Error
 Strehl Ratio
 Laser "Brightness"
 Laser Beam Quality
 Astronomical "Brightness"
 Spot Size for a Gaussian Beam
 Spot Size for a Uniform Circular Aperture
 Temporal Error
 Focal Anisoplanatism (the "Cone Effect")
 Laser Guide Stars
 Subsystem Requirements: The Wavefront Sensor
 Angular Isoplanatic Error
 Subsystem Requirements: Tilt Mirror
 Subsystem Requirements: How many actuators? Zonal or Modal Control
 Subsystem Requirements: Deformable Mirror
 Deformable Mirror Actuator Configurations
 Ferroelectric Actuators
 Electrostatic Actuators
 Voice Coil Actuators
 Deformable Mirror Influence Function Models
 Bimorph and MEMS Mirrors
 Segmented Deformable Mirrors
Control and Reconstruction
 Actuator and Wavefront Sensor Layouts
 Correctability and Flattening of a Deformable Mirror
 Adaptive Optics System Feedback Configuration
 Deformable Mirror Dynamic Model
 Controller Dynamic Model
 Wavefront Sensor Dynamic Model
 Latency
 One-Dimensional Sampling
 Two-Dimensional Sampling
 Temporal Sampling Rate Selection
 System Stability
 General Control-System Parameters
 Sensitivity Functions
 Bandwidth Estimation from Controller Gains
 Poke Matrix
 Example System Geometry
 Singular-Value Decomposition of the Poke Matrix
 Actuator and Subaperture Observability
 Identification of Actuator Locations
 Poke Matrix Smoothing
 Actuator Slaving: Active Actuator Identification
 Actuator Slaving: Slave Logic
 Adding Slaving into the Reconstructor
 Tilt Removal
 Piston and Waffle Removal
 Reconstructor Generation: Least Squares
 Reconstructor Generation: Regularization
 T-Filter
 Modal Suppression
 Interactuator Shear Suppression
 Nullspace Suppression
 Weighting Matrices
 Modal Feedback
 Reconstructor Generation: Procedure
 Reconstructor Comparison
 Slope Discrepancy
 Offloads and Woofer-Tweeter Systems
 Open-Loop Wavefront Estimation
 Kalman Filtering
 Multivariable System Performance
 Disturbance Injection
 Wavefront Sensor Calibration
 Centroiding and Thresholding
 Misregistration
 Subaperture Spillover
Equation Summary
Bibliography
Index

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