Electronic monitoring apparatus

Details Electronic monitoring apparatus Electronic monitoring apparatus

1976-03-09

1978-05-09

Gruber, Felix D.

Boots, shoes, and leggings

73570, 73658, 364508, 364851, G01H 100, G06G 726

Patent

active

040890554

ABSTRACT:
A method and apparatus for electronically monitoring the condition of an object which normally emits stationary stochastic signals is disclosed wherein electronic signals representative of the emitted signals are generated in a plurality of at least two frequency bands and the kurtosis coefficient for these signals is determined over a period of time. Variations of the kurtosis coefficient are detected to provide an indication of the condition of the object.

REFERENCES:
patent: 3278736 (1966-11-01), Pastoriza
patent: 3529140 (1970-09-01), Doering
patent: 3705297 (1972-12-01), John
patent: 3733892 (1973-05-01), Rennick
patent: 3745815 (1973-07-01), Bentone et al.
patent: 3803394 (1974-04-01), Fraser
Croxton & Cowden: (Textbook) Applied General Statistics Chapt. 10: Dispersion, Skewness and Kurtosis, pp. 239-235 of interest, Prentice-Hall, Inc., 1939.
Merkle et al.: Probability Density Functions of Measured Data, Wright Patterson Air Force Base U.S. Government Publication, 1973, pp. 181-188.

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