Patent ID: 8642874

Claim:
A method for resonance tuning comprising: receiving an analog signal in response to a resonance of a structure; digitizing the analog signal to create a plurality of time samples; detecting a burst of the time samples, enabling a trigger thereby; buffering a series of time samples from the plurality of time samples in response to the trigger being enabled; estimating a power spectrum by computing a Time-To-Frequency-Transform of the series of time samples to create a series of frequency samples and squaring a magnitude of each of the frequency samples; selecting one or more subsets of frequency samples from the series of frequency samples, each subset associated with one or more spectral peaks, each spectral peak including at least one of the frequency samples having a first magnitude exceeding a first threshold and being spectrally adjacent to any other of the frequency samples in any other spectral peak within the same subset by less than a second threshold; and determining a fundamental spectral peak in a fundamental subset, the fundamental subset including the spectral peak having the frequency sample at the lowest frequency greater than zero, and the fundamental spectral peak having the frequency sample with the largest first magnitude within the fundamental subset.