Correlation properties of the zero-crossing intervals of Gaussian processes (Corresp.)

An experimental study is reported of the correlation properties of the intervals between zero crossings of a Gaussian process. The validity of an assumption under which McFadden derived certain theoretical results is examined. It is found that the assumption is valid only for processes with narrow-band spectra. For broad-band spectra, the correlation coefficients of the intervals decay slowly and oscillate with increasing separation between intervals.