Search International and National Patent Collections

1. (WO1999005685) SELF-TUNING SYSTEM FOR INDUSTRIAL SURVEILLANCE

Pub. No.:    WO/1999/005685    International Application No.:    PCT/US1998/015280
Publication Date: Feb 4, 1999 International Filing Date: Jul 23, 1998
IPC: G06F 7/00
G06F 19/00
G21C 7/36
Applicants: ARCH DEVELOPMENT CORPORATION
Inventors: WEGERICH, Stephan, W.
JARMAN, Kristin, K.
GROSS, Kenneth, C.
Title: SELF-TUNING SYSTEM FOR INDUSTRIAL SURVEILLANCE
Abstract:
A method and system for automatically establishing operational parameters of a statistical surveillance system. The method and system performs a frequency domain transition (20) on time dependent data, first Fourier composite (30) is formed, serial correlation (35) is removed, a series of Gaussian whiteness tests (50) are performed along with an autocorrelation (35) test, Fourier coefficients (80) are stored and a second Fourier composite is formed. Pseudorandom noise is added, a Monte Carlo simulation is performed to establish SPRT missed alarm probabilities and tested with a synthesized signal. A false alarm test is then empirically evaluated and if less than a desired target value, then SPRT probabilities are used for performing surveillance.