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System for surveillance of spectral signals

United States Patent

May 29, 2001
View the Complete Patent at the US Patent & Trademark Office
Argonne National Laboratory - Visit the Technology Development and Commercialization Website
A method and system for monitoring at least one of a system, a process and a data source. A method and system have been developed for carrying out surveillance, testing and modification of an ongoing process or other source of data, such as a spectroscopic examination. A signal from the system under surveillance is collected and compared with a reference signal, a frequency domain transformation carried out for the system signal and reference signal, a frequency domain difference function established. The process is then repeated until a full range of data is accumulated over the time domain and a SPRT sequential probability ratio test methodology applied to determine a three-dimensional surface plot characteristic of the operating state of the system under surveillance.
Gross; Kenneth C. (Bolingbrook, IL), Wegerich; Stephan W. (Glendale Heights, IL), Criss-Puszkiewicz; Cynthia (Reno, NV), Wilks; Alan D. (Mt. Prospect, IL)
Arch Development Corporation (Chicago, IL)
08/ 970,873
November 14, 1997
The U.S. Government has rights in this invention pursuant to Contract W-31-109-ENG-38 between the U.S. Department of Energy and the University of Chicago.