| Description |
1 online resource (286 p.) |
| Series |
Wiley Series in Pure and Applied Optics Ser |
|
Wiley Series in Pure and Applied Optics Ser
|
| Contents |
Intro -- Aero-Optical Effects -- Contents -- Acknowledgements -- 1 Introduction -- 1.1 Motivation for Revisiting Aero-Optics -- 2 Fundamentals -- 2.1 Wavefronts and Index of Refraction -- 2.2 Huygens' Principle -- 2.3 Basic Equations and Optical Path Difference -- 2.4 Linking Equation -- 2.5 Image at a Focal Plane (Far-field Propagation) -- 2.6 Far-field Intensity in the Presence of Near-field Distortions -- 2.6.1 Temporal Intensity Variation -- 2.7 Wavefront Components -- 3 Measuring Wavefronts -- 3.1 Interferometry Methods -- 3.2 Wavefront Curvature Methods |
|
3.3 Gradient-based Wavefront Sensors -- 3.3.1 Shack-Hartmann Wavefront Sensor -- 3.3.1.1 Wavefront Reconstruction Algorithm -- 3.3.2 Malley Probe -- 3.3.3 SABT Sensor -- 3.4 Typical Optical Set-Ups -- 4 Data Reduction and Interpretation -- 4.1 Statistical Analysis -- 4.1.1 Temporal and Spatial OPDrms -- 4.1.2 Histograms and Higher-Moment Statistics -- 4.2 Spectral Analysis -- 4.2.1 Relation between the Deflection Angle Spectrum and the Wavefront Statistics -- 4.2.2 Dispersion Analysis -- 4.3 Modal Analysis -- 4.3.1 Zernike Functions -- 4.3.2 Proper Orthogonal Decomposition (POD) |
|
4.3.2.1 Direct Method -- 4.3.2.2 Snapshot Method -- 4.3.3 Dynamic Mode Decomposition (DMD) -- 4.4 Cross-correlation-based Techniques -- 4.4.1 Local Convective Speeds -- 4.4.2 Multi-point Malley Probe Analysis -- 4.4.3 Spatially Varying 2-D Convective Velocity -- 5 Aperture Effects -- 6 Typical Aero-Optical Flows -- 6.1 Scaling Arguments -- 6.2 Free Shear Layers -- 6.2.1 Shear-Layer Physics -- 6.2.2 Aero-Optical Effects -- 6.2.3 Historical Shear Layer Measurements in AEDC -- 6.2.4 Weakly Compressible Model -- 6.3 Boundary Layers |
|
6.3.1 Model of Aero-optical Distortions for Boundary Layers with Adiabatic Walls -- 6.3.2 Angular Dependence -- 6.3.3 Finite Aperture Effects -- 6.3.4 Nonadiabatic Wall Boundary Layers -- 6.3.5 Instantaneous Far-Field Intensity Drop-Outs -- 6.3.5.1 Absolute SR Threshold -- 6.3.5.2 Relative Intensity Variation -- 6.4 Turrets -- 6.4.1 AAOL -- 6.4.2 Flow Topology and Dynamics -- 6.4.3 Steady-lensing Effects at Forward-looking Angles -- 6.4.4 Aero-optical Environment at Back-looking Angles -- 6.4.5 Shock-effects at Transonic Speeds -- 7 Aero-Optical Jitter -- 7.1 Local and Global Jitter |
|
7.1.1 Local Jitter -- 7.1.2 Global Jitter -- 7.2 Subaperture Effects -- 7.3 Techniques to Remove the Mechanically Induced Jitter -- 7.3.1 Cross-correlation Techniques -- 7.3.2 Large-Aperture Experiments -- 7.3.3 Stitching Method -- 8 Applications to Adaptive Optics -- 8.1 Beam-Control Components -- 8.2 How Much Correction Is Needed -- 8.3 Flow-Control Mitigation -- 8.3.1 Non-Flow-Control Mitigation -- 8.3.2 Some Qualities of Separated Shear Layers -- 8.3.3 Using the POD Analysis to Develop Requirements -- 8.4 Proper Number of Wavefront Sensor Subapertures to Actuator Ratio |
| Notes |
Description based upon print version of record |
|
8.4.1 Numerical Simulation |
| Form |
Electronic book
|
| Author |
Jumper, Eric J
|
|
Whiteley, Matthew R
|
| ISBN |
9781119037156 |
|
1119037158 |
|
1119037069 |
|
9781119037064 |
|
