RF-based special material detection system with secure multi-dimensional authentication

A machine-implemented method for detecting and identifying materials within a target object located at a distance from a material detection and identification system including at least one processor, a radio frequency (RF) transmitter, and an RF receiver, the machine-implemented method comprising:

• accessing, via the at least one processor, a material database storing previously obtained data associating each of a plurality of materials with one or more corresponding resonance frequencies at which the plurality of materials when exposed to RF signals the one or more corresponding resonance frequencies produce response signals with detectable resonance characteristics, wherein the material database is previously created by transmitting the RF signals into known materials at various frequencies and storing frequencies at which resonance characteristics are detected for the known materials;
• for each material of at least a subset of the plurality of materials in the material database:
• transmitting, via the RF transmitter, an RF signal into the target object at a first resonance frequency specified in the material database for each material;
• receiving, via the RF receiver, a response signal from the target object in response to the RF signal;
• and
• analyzing, via the at least one processor, the response signal for the resonance characteristics that indicate a presence of each material in the target object;
• and
• generating, via the at least one processor for display on a graphical display screen, a report of each material in the target object indicated by the resonance characteristics detected in a corresponding response signal,
• wherein generating includes at least one of:
• obtaining a timestamp from the at least one processor and including the timestamp in the report;
• obtaining image or video data from a camera in communication with the at least one processor and including the image or video data in the report;
• or
• obtaining previously unknown geolocation data from a geolocation sensor in communication with the at least one processor and including the previously unknown geolocation data in the report.