Accession Number : ADD014926
Title : Stationary Probability Integrator System.
Descriptive Note : Patent, Filed 26 Mar 69, patented 16 Apr 91,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Reimel, Paul F
Report Date : 16 Apr 1991
Pagination or Media Count : 8
Abstract : A stationary probability integrator system for facilitating spectral analysis of detected signals by suppressing random frequency background noise, such as ocean disturbances and marine life, and by enhancing spectral signatures of discrete sound sources, such as generated by submarines in water. A raw 0 to 100 Hertz frequency spectrum of noise and spectral signature from a frequency analyzer having 500 increments or elements is divided into ten assemblies of 50 elements per ensemble. The ensemble averages, which are the average simultaneous energy levels of all elements in respective ensembles, of each sample is negatively combined with the energy level of each element of the corresponding ensemble of the next consecutive raw sample. Each combination and the cumulative algebraic sum of each combination is then displayed in the same frequency spectrum as the samples.
Descriptors : BACKGROUND NOISE, ENERGY LEVELS, FREQUENCY, FREQUENCY ANALYZERS, INTEGRATORS, MARINE BIOLOGY, NOISE, OCEANS, PROBABILITY, SOUND GENERATORS, SPECTRA, SPECTRUM ANALYSIS, SPECTRUM SIGNATURES, STATIONARY, SUBMARINES, SYNCHRONISM, WATER
Subject Categories : Cybernetics
Distribution Statement : APPROVED FOR PUBLIC RELEASE