Award Data

PROCESSING OF SAR DATA IN REAL TIME REQUIRES HIGH SPEED COMPUTATION DEVICES CURRENTLY BEYOND THE STATE-OF-THE-ART OF CONVENTIONAL METHODS. DESIRED PROCESSORS MUST ALSO BE SMALL, RUGGED AND LOW POWER TO BE DEPLOYED ON AIRCRAFT. OPTICAL TECHNIQUES CAN SATISFY THESE REQUIREMENTS WITH IMAGINATIVE ARCHITECTURES. THIS PROPOSAL PRESENTS AN INNOVATIVE APPROACH FOR REAL TIME SAR IMAGE RECONSTRUCTION THAT C ...

THIS PROJECT FOCUSES ON THE TWO MOST IMPORTANT ISSUES OF ALL OF COMPUTATIONAL FLUID DYNAMICS: 1) HOW GOOD ARE THE NUMERICAL ANSWERS OBTAINED IN A COMPUTATION? AND 2) HOW CAN THE BEST POSSIBLE ANSWERS BE OBTAINED FOR A FIXED AND LIMITED COMPUTATIONAL EFFORT, BUDGET, OR COMPUTING CAPABILITY? IN GENERAL TERMS THE ANSWERS TO THESE QUESTIONS ARE 1) TO DETERMINE RELIABLE A-POSTERIORI ESTIMATES OF ERROR ...

AN INNOVATIVE APPROACH TO FORMING A NULL IN THE SECONDARY PATTERN OF A REFLECTOR ANTENNA IS DEVELOPED BY THIS PROJECT. AN ELECTRONICALLY CONTROLLABLE REFLECTIVE SURFACE BEING DEVELOPED ON A NASA SBIR IS THE STARTING POINT FOR THE WORK. THIS PROJECT EXTENDS THE PERFORMANCE OF THE SURFACE SO THAT IT IS USEFUL AS A NULL FORMER. THE RESULT IS CONSIDERABLY REDUCED COST OF NULL STEERING ANTENNAS. THE DE ...

NONDESTRUCTIVE EVALUATION OF MUNITIONS PRESENTS SPECIAL PROBLEMS THAT CANNOT BE SOLVED WITH CONVENTIONAL TECHNIQUES. AN ELECTRONIC X-RAY IMAGING SYSTEM WILL BE STUDIED TO DETERMINE THE FEASIBILITY OF ITS USE IN ADVANCED RADIOGRAPHIC IMAGING TECHNIQUES SUCH AS REMOTE ON-LINE INSPECTION, MULTISPECTRAL RADIOGRAPHY AND BACKSCATTER TOMOGRAPHY.

THE PURPOSE OF THE PROPOSED RESEARCH IS TO DEMONSTRATE A SOFTWARE SYSTEM THAT MAKES CORRELATIONAL/FACTOR TYPE ANALYSES OF LARGE DATA BASES PRACTICAL ON MICROCOMPUTER-CLASS MACHINES, AND IS ABLE TO COMPUTE THE SIGNIFICANCE OF PSYCHOPHYSIOLOGICAL MEASUREMENTS AT A SPEED THAT MAKES REAL-TIME FEEDBACK CONTROL MECHANISMS POSSIBLE. THE SOFTWARE PROTOTYPE DEVELOPED WILL ACCESS A DATA BASE COMPOSED OF A W ...

NATURAL NEURAL NETWORKS ARE STILL OUR BEST GUIDE TO THE DESIGN PRINCIPLES OF ADAPTIVE, INTELLIGENT COMPUTING ARCHITECTURES. DETAILED KNOWLEDGE OF THE MOLECULAR BIOPHYSICAL STRUCTURES THAT MAKE BRAINS WORK WOULD BE NICE TO HAVE, BUT THAT IS NOT THE ONLY WAY TO EXTRACT NATURE'S SECRETS. THIS PROPOSAL USES THE CONCEPT OF RESONANCE AS THE MEANS TO TUNE THE PARAMETERS OF AN ARTIFICIAL NEURAL SYSTEM (AN ...

N/A

AN "INTELLIGENT" MECHANISM TO CONTROL AIRCRAFT TURBINE ENGINE COOLDOWN UTILIZING INTEGRAL SENSORS, LOGIC, DRIVE AND FAIL-SAFE, FOR EXTENDING THE PERFORMANCE LIFE OF AIRCRAFT GAS TURBINE ENGINES IS PROPOSED. AIRCRAFT TURBINE ENGINES ARE PRECISELY MADE AND CONTROLLED MECHAISMS UNTIL SHUTDOWN. THEN, HEAT SOAK AND SOAKBACK PHENOMEN DELETERIOUSLY AFFECT ENGINE PERFORMANCE, LIFE, MAINTENANCE COSTS AND L ...

EXISTING GLASS MATRIX LASERS UTILIZE NEODYMIUM DOPING OF A SILICATE MATRIX. THE INABILITY TO USE A SIO2 MATRIX RESULTS IN AN EFFICIENCY OF 3% OR LESS. THE LOW THERMAL CONDUCTIVITY OF GLASS COUPLED WITH THE RELATIVELY HIGH COEFFICIENT OF THERMAL EXPANSION OF THE SILICATES LIMITS THE OUTPUT INTENSITY AND PULSE RATE IN ORDER TO PREVENT DEDOCUSING AND FILAMENTARY BREAKDOWN FROM THE THERMAL EFFECTS. TH ...

FUTURE MILITARY SPACE MISSIONS WILL INTRODUCE SIGNIFICANT NEW TECHNOLOGICAL NEEDS FOR SPACECRAFT ENERGY SYSTEMS. VARIOUS TECHNOLOGIES NEED TO BE EVALUATED TO DETERMINE THE BEST TECHNOLOGY FOR A PARTICULAR APPLICATION. A DESIGN TOOL THAT ALLOWS RAPID BUT ACCURATE COMPARISON OF ALL ALTERNATIVES WOULD BE EXTREMELY USEFUL. THE INTENT OF THIS PROPOSAL IS TO EXTEND THE GENERALIZED SIM TOOL TRANSIENT MOD ...