Methods, apparatuses, systems and computer readable mediums for determining location of assets

摘要

In locating a transmitter, a central processor calculates a matched filter detector output for each of one or more candidate transmitter locations by applying a linear filter to low frequency magnetic field measurements obtained at a plurality of receiver locations. The central processor then determines the location of the transmitter based on the one or more calculated matched filter detector outputs. The linear filter is derived for the one or more candidate transmitter locations.

主权项

1. A method for locating a transmitter, the method comprising:
calculating a matched filter detector output for each of one or more candidate transmitter locations by applying a linear filter to low frequency magnetic field measurements obtained at a plurality of receiver locations, the linear filter being derived for the one or more candidate transmitter locations, and the matched filter detector output being a polynomial function representing the one or more candidate transmitter locations; generating a plurality of contour values associated with the one or more candidate transmitter locations based on the one or more calculated matched filter detector outputs; and determining the location of the transmitter based on the plurality of contour values for the one or more calculated matched filter detector outputs.