SEARCH · Engineering Papers
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.
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Integral and sigma pulse frequency modulation effects on white noise, analyzing autocorrelation and spectral density functions of PFM system output
Abell 2199 cluster of galaxies, discussing population contours, volume density function, structure and other static properties
Elastic directed curves dynamic theory, considering Hamilton principle, mass conservation and behavior of action density function under rigid body variations
Robust detection of binary signal in additive noise, using extreme value theory /EVT/ to estimate probability density function and system error and threshold
Least square or least mean square approximation methods in abstract pattern recognition, noting unknown probability density function
Discrete Fourier transform factorization of arbitrary spectral density functions
Probability density functions for quantization noise, continuous wave interference, impulse noise, and atmospheric noise
Lunar rolling stones anomalous surfaces goniophotometric properties, considering bearing strength as rock density function
Optimum adaptive reception for binary sequences, using posteriori probability density function computing device synthesized from correlator, instantaneous nonlinearity and multiplier
Hard limiting bandpass limiter output signal to noise ratio in PM signal detection calculated using probability density function
Discrete Fourier transform method for factoring spectral density functions, calculating absolute error
Random vibration first threshold crossing probability density function for linear oscillator
Computer programming formulas for frequency and statistical analysis of random waveform signals including Fourier analysis, probability density functions, and autocorrelation
Poisson density functions and factor analysis of shock wave propagation and sonic boom spectra in turbulent flow
Eigenfunction expansions of reduced nonGaussian phase error transition probability density function for first order tracking loop, analyzing spectral properties of Fokker-Planck equation
Nonparametric Bayes risk estimation for measurement classification, using nearest neighbor error rate and Parzen probability density function estimators
Small scale turbulence structure in atmospheric boundary layers over open ocean, noting velocity derivatives probability density function lognormality
Galactic stochastic magnetic field lines, deriving dynamic equation for probability density function