Patent ID: 7817974

Claim:
A mobile radio-controlled explosive device detection system, comprising: a first wideband signal collection front end subsystem, comprising: at least one wideband receiver for receiving RF signals transmitted by an RF signal transmitter across a broad spectrum said receiver comprising first and second antennas for receiving RF signals; a digitizer for creating an individual continuous stream of digitized data representing said RF signals received by said first and second antennas; a digital data converter for converting said individual digitized data stream into FFT frequency bins, each said FFT frequency bin defining an amplitude; and first and second data buffers for storing said data streams from said first and second antennaes in a buffer in a continuous stream; a second wideband signal collection front end subsystem, comprising: a wideband receiver for receiving RF signals transmitted by an RF signal transmitter across a broad spectrum said receiver comprising a third antennae for receiving RF signals; a digitizer for creating an individual continuous stream of digitized data representing said RF signals received by said third antennae; a digital data converter for converting said individual digitized data stream into FFT frequency bins, each said FFT frequency bin defining an amplitude; and a processor for i) comparing said amplitude of each said frequency bin of said first front end subsystem to said amplitude of each said time-coupled frequency bin of said second front end subsystem, and ii) when said comparison identifies a frequency bin of interest, analyzing the Doppler characteristics of said data from said buffer to determine the location of the transmitter of the received RF signals.