Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Analysis of complex waves
Patent
1983-05-11
1985-09-17
Tokar, Michael J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Analysis of complex waves
364485, G01R 2316
Patent
active
045423369
ABSTRACT:
A method and apparatus is proposed for sampling at a low rate a broad band sparse spectrum without aliasing to a specified band in which a lowest sampling frequency is found by selecting that signal level from the spectrum which is considered negligible and finding the bandwidths at which the information bands about the carrier frequency multiple reaches this level, then arranging forbidden or unaccepted values of the remainder r of the quotient of the carrier frequency divided by the sampling frequency into a series in order of magnitude, further selecting those sampling frequencies at which adjacent forbidden ranges of the remainder become contiguous, selecting the least value thereof in order to ascertain the corresponding permissible value of the remainder r, and finally determining the corresponding least sampling frequency and the maximum integer value multiple of a clock count, thus establishing the maximum sampling interval.
REFERENCES:
patent: 3881097 (1975-04-01), Lehmann
patent: 3916689 (1975-11-01), Donnelly
patent: 4054785 (1977-10-01), Lehmann
patent: 4067060 (1978-01-01), Poussart
patent: 4093989 (1978-06-01), Flink
patent: 4169245 (1979-09-01), Crom
patent: 4321680 (1982-03-01), Bertrand
Greigg Edwin E.
Simmonds Precision Products Inc.
Tokar Michael J.
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