公开(公告)号：US20170124480A1

公开(公告)日：2017-05-04

申请号：US14928831

申请日：2015-10-30

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Soumalya Sarkar ,  THYAGARAJU DAMARLA ,  Asok Ray

IPC: G06N99/00 ,  G06N5/04 ,  G06N7/00

CPC classification number: G06N20/00 ,  G01V1/001 ,  G06N7/005

Abstract: A system for detection of human or vehicle activity comprising at least one sensor adapted to generate a signal and at least one processor operating to denoise the signal; generate an autocorrelation of the signal; partition the signal into a predetermined number of overlapping segments to form a time series of data; generate symbols for the overlapping segments; compare the pattern of generated symbols with known predetermined patterns of symbols representing human or vehicular activity; determine whether a threshold probability is exceeded which attributes the data signal to human or vehicular activity; analyze the patterns presented in the data signal by transforming the patterns of symbols into states; determine the transitions between states; and classify the signal as to being attributable to human or vehicular activity based upon the transitions between states. A method of detection and classification of sensor data signals via detecting patterns using time series analysis.