Pre-Grant Publication Number: 20090077150
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Facilitator's Comment 
Action Item Show without Noise
This could be referred to as adaptive pre-distortion using fourier transforms and an arbitrary waveform generator. Or maybe it's just a "tailored waveform", like the ones used for electronic warfare. Or maybe it's just "autotuning" as used in control systems.
Utility? Yes.
Novel? Possibly, but only within plasma devices. In radio engineering, especially Software-defined radio, very doubtful. In control engineering, no, this would be referred to as systems identification.
Nonobvious? Maybe in plasma engineernig, but definitely not if the goal is radios or control systems, where frequency analysis is king, and an FFT is a standard way of analyzing an unknown plant.