Aaron P White

US Patent:

20120326707, Dec 27, 2012

Filed:

Jun 27, 2011

Appl. No.:

13/170015

Inventors:

Michael L. Webb - Cerritos CA, US
Aaron C. White - Rancho Palos Verdes CA, US

Assignee:

RAYTHEON APPLIED SIGNAL TECHNOLOGY, INC. - Sunnyvale CA

International Classification:

G01R 33/025

US Classification:

32420712

Abstract:

A magnetic signal noise reduction and detection system has inputs configured to receive data from a first total field scalar magnetometer, data from a vector magnetometer, and data from a position, velocity and heading sensor, a signal processor configured with a pre-processor system, an adaptive noise cancellation system and a detection system, the pre-processor system configured to carry out initial processing of data received. The pre-processor is configured to convert data to the frequency domain and pass the converted data to the adaptive noise cancellation system. The adaptive noise cancellation system is configured to carry out multivariate regression on the converted data to reduce detected noise. The detection system is configured to detect magnetic anomalies and output information in real time about the magnetic anomalies to a user interface.