SUMMARY PROGRESS REPORT OF RESEARCHES, FOR THE PERIOD NOV. 15, 1960-MAY 15, 1961
S-15 gamma ray satellite, payload preparation launch operation and performance
DATA ACQUISITION↗
SEARCH · Engineering Papers
Results for “Pattern recognition”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
PAYLOAD OPTIMIZATION FOR POWER-LIMITED VEHICLES
Payload optimization for power-limited vehicles
SPACE VEHICLE↗
PAYLOAD SEPARATION AND THRUST TERMINATION IN A SOLID-PROPELLANT ROCKET MOTOR
A command method for thrust reduction and/or thrust termination of a solid-propellant rocket motor-called project Shavetail-was demonstrated successfully in flight by Jet Propulsion Laboratory. Thrust reduction is achieved by the separation of a portion of the nozzle to increase the throat area. The chamber pressure is lowered and motor continues to burn at a vernier level of thrust. At any time before motor burnout, upon command from guidance, thrust cancellation and motor separation from the payload are achieved by opening an orifice in the head end of the motor.
VELOCITY↗
A computer-aided instrumentation system for studies in tactual perception.
Digital computer for analysis of human perception of spatial-temporal patterns displayed tactually
PATTERN RECOGNITION↗
Study of cloud patterns as seen by meteorological satellites Final report, 1 Jul. 1963 - 30 Sep. 1964
Cloud pattern classification, discrimination, and interpretation from photographs obtained by meteorological satellite - Tiros satellite
TIROS SATELLITE↗
Methods of Confusion in a Pattern Matching Task
Pattern degradation influence on human responses in pattern perception studies
PSYCHOPHYSIOLOGY↗
Spectral analysis of pump cavitation noise Final report, Jan. - Nov. 1965
Spectral analysis of H-1 oxidizer turbopump cavitation noise
PATTERN RECOGNITION↗
Analysis of baseline and Gemini flight GT-7 EEG data with specification of on-line computing requirements
Analysis of baseline and Gemini GT-7 ELECTROENCEPHALOGRAM data with specification of on-line computing requirements
NEUROPHYSIOLOGY↗
Research investigation of electrical discharge fragmentation for protein structure identification Final report
Electrical discharge fragmentation device for determination of bacteria fragmentation patterns
LIFE DETECTOR↗
An adaptive on-off communication system.
Adaptive on-off communication system for binary data transmission over noisy channel of unknown attenuation
ADAPTIVE CONTROL↗
Tactual perception - Experiments and models
Tactual perception experiments and models
PATTERN RECOGNITION↗
Automatic processing of multi-spectral images
Statistical decision theory for automatic classification of multiple spectral image points
STATISTICAL DECISION THEORY↗
Application of moire patterns to lunar mapping
Applicability of moire patterns produced by superposed screens in analysis of lineaments on lunar photographs
PHOTOGRAPH INTERPRETATION↗
Iterative computation of a posteriori probability for M-ary nonsupervised adaptation.
Iterative computation of a posteriori probability for M-ary nonsupervised adaptation
STATISTICAL COMMUNICATION THEORY↗
Noise methods in pattern perception.
Visual noise induction methods investigated at seven noise levels, discussing pattern comparisons by 46 subjects
NOISE INTENSITY↗
Effect of display movement on tactile pattern perception.
Effect of display movement on tactile pattern perception
TACTILE SENSATION↗
Response latency in a pattern perception situation.
Response latency in visual pattern perception situation
TIME FACTOR↗
Air pollution source identification
The techniques available for source identification are reviewed: remote sensing, injected tracers, and pollutants themselves as tracers. The use of the large number of trace elements in the ambient airborne particulate matter as a practical means of identifying sources is discussed. Trace constituents are determined by sensitive, inexpensive, nondestructive, multielement analytical methods such as instrumental neutron activation and charged particle X-ray fluorescence. The application to a large data set of pairwise correlation, the more advanced pattern recognition-cluster analysis approach with and without training sets, enrichment factors, and pollutant concentration rose displays for each element is described. It is shown that elemental constituents are related to specific source types: earth crustal, automotive, metallurgical, and more specific industries. A field-ready source identification system based on time and wind direction resolved sampling is described.
Fordyce, J. S.↗