Pathfinder has developed a proprietary technique for processing data from today's operational electromagnetic sensors to accurately identify non-cooperative targets at long range. The primary payoffs for development of this technology will be the enhancement of battlefield target discrimination capability in three areas:  
                           
    IFF; Allowing fast, accurate engagement decisions
Target Management: Ensuring that weapons are expended preferentially against high threat/high value targets.
Counter-deception; Providing highly accurate target/decoy discrimination
     

The basis of the technology is the phenomenon that a coherent electromagnetic signal either reflected or emitted from a vibrating surface will have a detectable frequency-modulated image of that vibration, when the physical amplitude of the target vibration is greater than about one-tenth of the electromagnetic wavelength. For example, a CO2 laser and detector could detect amplitudes on the order of one micron - well below any auditory threshold. The natural harmonics of any complex device, from an electric motor to an aircraft to an aircraft carrier, will provide a virtually unspoofable fingerprint of that device.
     

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