Using RMS differentials for robust onset time estimation of impulses

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Various methods exist for estimating the precise onset time of broadband impulses in a time-domain signal. The method presented here offers a high robustness, with speeds relativley equal to or surpassing currently existing methods. The method is capable of dealing with impulses that have been corrupted by dispersion. Onset time correlates well with the maximum of the lower envelope bound curve of the derivative of the RMS in low-noise signals. In noisy signals, the onset time is found using the samemethod and a noise correction procedure can be applied for more precision.