Communications: directive radio wave systems and devices (e.g. – Directive – Beacon or receiver
Patent
1970-03-25
1988-06-28
Blum, Theodore M.
Communications: directive radio wave systems and devices (e.g.,
Directive
Beacon or receiver
342378, 367100, G01S 502, G01S 968
Patent
active
047542829
ABSTRACT:
A data analysis system accepts time related data samples which are develo from sets of common wavefronts incident upon a plurality of sensors. The data samples are converted from analog-to-digital form and the Fourier transforms relative to the frequency components are generated. The frequency components of the Fourier transforms are in turn cross-correlated for developing matrices of all possible correlations for each frequency component and then the matrices are integrated over a determinable time period. The resultant integrated matrices are compared with signals representative of an incident plane wave power as a function of its angles of arrival at a sensor array and of its frequency, producing output signals of relative strength indicative of the direction of the origin of the data samples.
REFERENCES:
patent: 3130408 (1964-04-01), Kumano
patent: 3359409 (1967-12-01), Dryden
Edelblute David J.
Kinnison Gerald L.
Blum Theodore M.
McLaren J. W.
Rubens G. J.
Sciascia R. S.
Swann Tod
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