Patent ID: 8502666
Filing Date: 2013-08-06
Classification: G01V

Abstract:
1. A method for remotely detecting a human within an area of interest (AOI), comprising the steps of: A) conducting a first time domain measurement of response signal energy from said AOI when said human is not present in said AOI to establish a background signal; B) conducting a second time domain measurement of response signal energy from said AOI when at least one said human is present in said AOI, to establish a background-plus-human signal, said background-plus-human signal being due to mutual impedance phenomena between said human and said AOI; C) subtracting the results of said step A) from said step B) to yield a reference human signal; D) storing said reference human signal E) selectively conducting at least one third time domain measurements of response energy from said area; and, F) subtracting the results of said step A) from said step E); and, G) comparing the results of said step E) to said reference human signal from said step D).