SWAT system performance predictions. Project report. [SWAT (Short-Wavelength Adaptive Techniques)]

Technical Report · Wed Mar 10 00:00:00 EST 1993

OSTI ID:6336981

Parenti, R R; Sasiela, R J

In the next phase of Lincoln Laboratory's SWAT (Short-Wavelength Adaptive Techniques) program, the performance of a 241-actuator adaptive-optics system will be measured using a variety of synthetic-beacon geometries. As an aid in this experimental investigation, a detailed set of theoretical predictions has also been assembled. The computational tools that have been applied in this study include a numerical approach in which Monte-Carlo ray-trace simulations of accumulated phase error are developed, and an analytical analysis of the expected system behavior. This report describes the basis of these two computational techniques and compares their estimates of overall system performance. Although their regions of applicability tend to be complementary rather than redundant, good agreement is usually obtained when both sets of results can be derived for the same engagement scenario.... Adaptive optics, Phase conjugation, Atmospheric turbulence Synthetic beacon, Laser guide star.

• Research Organization: Massachusetts Inst. of Tech., Lexington, MA (United States). Lincoln Lab.
• OSTI ID: 6336981
• Report Number(s): AD-A-262857/6/XAB; PR-SWP-8-REV-1; CNN: F19628-90-C-0002
• Country of Publication: United States
• Language: English

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47 OTHER INSTRUMENTATION
42 ENGINEERING
54 ENVIRONMENTAL SCIENCES
CALCULATION METHODS
COMPARATIVE EVALUATIONS
OPTICAL SYSTEMS
PERFORMANCE TESTING
ACTUATORS
ATMOSPHERIC CIRCULATION
COMPUTER CODES
LASERS
MONTE CARLO METHOD
NUMERICAL ANALYSIS
PREDICTION EQUATIONS
RAYLEIGH SCATTERING
THEORETICAL DATA
TURBULENCE
COHERENT SCATTERING
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EVALUATION
INFORMATION
MATHEMATICS
NUMERICAL DATA
SCATTERING
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