СOMPARISON OF ON-LINE AND OFF-LINE FRIED PARAMETER ESTIMATION METHODS
Annotation
We address the problem of high-accuracy estimation of the Fried parameter r0 by comparing two approaches based on estimation of statistical properties of intensity-based wavefront measurements with parameter-fitting to the theoretically predicted values. In the first approach, the phase of the aberration-degraded field is restored from the measurements to obtain the statistical estimate for the structure function. Due to the iterative nature of the most phase retrieval methods, this approach requires significant computational time and thus cannot provide results in real time. In the second approach, the structure function of the sub-aperture wavefront slopes is directly calculated and related to the turbulence parameters in real time. We describe the equations used to obtain the estimate of the Fried parameter by both methods and check their accuracy with numerical simulations.
Keywords
Постоянный URL
Articles in current issue
- INTERFERENCE OF MULTI-MODE WEAK COHERENT STATES FOR TWIN-FIELD QUANTUM COMMUNICATION APPLICATIONS
- FIBER COUPLED LASER DIODE MODULE ALIGNMENT
- EFFECT OF OXIDE ADDITIVES ON UP-CONVERSION LUMINESCENCE OF ERBIUM IONS IN ALKALINE GERMANATE GLASSES
- MINIMIZATION OF NOISE FLOOR LEVEL OF FIBER-OPTIC INTERFEROMETRIC SENSOR ARRAY BY ADJUSTMENT OF OPERATIONAL AMPLIFIER CASCADE PARAMETERS
- ASSESSMENT OF CUTANEOUS BLOOD FLOW IN LOWER EXTREMITIES BY IMAGING PHOTOPLETHYSMOGRAPHY METHOD
- DIGITAL IMAGE ABERRATION CORRECTION TECHNIQUE FOR STRUCTURED ILLUMINATION MICROSCOPY
- THREE-DIMENSIONAL SIMULATION OF VOLUME PICTORIAL HOLOGRAM BY PHOTOGRAMMETRY METHOD
- OPTIMIZATION TECHNIQUES APPLIED TO INITIAL DESIGNS OF ULTRAVIOLET LITHOGRAPHIC OBJECTIVE
- NONDESTRUCTIVE EXPOSURE OF DIRECTED OPTICAL RADIATION ON DEVICES WITH LIGHT-SENSITIVE SENSORS
- ROBUST DYNAMICAL FEEDBACK DESIGN FOR BALLPOSITION CONTROL ON ROTARY PLATFORM
- MORPHOLOGY AND OPTICAL PROPERTIES OF AlN FILMS ON SAPPHIRE
- TEXT CLUSTERING POWERED BY SEMANTICO-SYNTACTIC FEATURES
- SIMULATION MODEL OF REDUNDANT MACHINE-TO-MACHINE EXCHANGE WITH ORGANIZATION OF QUEUES FOR ACCESS TO AGGREGATED CHANNELS
- SEA SURFACE IMAGE SUB-BAND ANALYSIS BASED ON COSINE TRANSFORM
- INTEGRATED ENVIRONMENT ARCHITECTURE FOR SOFTWARE DEVELOPMENT WITH STRUCTURED EDITING SUPPORT
IMPLEMENTATION OF AGENT INTERACTION PROTOCOL WITHIN CLOUD INFRASTRUCTURE IN GEOGRAPHICALLY DISTRIBUTED DATA CENTERS
- IDENTIFICATION OF EQUIPMENT DEGRADATION PHASE IN PREVENTATIVE MAINTENANCE SYSTEMS
- ENERGY-BASED ANALYSIS OF BIOINSPIRED MECHANISM FOR CHEETAH ROBOT LEG
- MODELING OF RESONANCE EFFECTS IN SPINE WITH ADDITIONAL FIXING ELEMENTS
- SIDE-CHANNEL INFORMATION LEAK DETECTION WITH WAVELET TRANSFORMATION
- SIMULATION OF UNORGANIZED GROUP BEHAVIOR IN CASE OF EMERGENCY
- EFFICIENCY RESEARCH OF SIGNAL RECOVERY ALGORITHMS WITH LONG GAPS AND RARE ARRIVAL OF MEASUREMENTS
- MODELING OF WIRELESS NETWORKS IN OMNET ++ ENVIRONMENT INVOLVING INET FRAMEWORK
- LEARNING ENVIRONMENT DESIGN USING ETHEREUM BLOCKCHAIN SMART CONTRACTS
- WEB PORTALS FOR MANAGEMENT OF CLOUD SERVICES WITHIN DATA CENTRES