Fig. 1
Three types of temporal noise. The top panels show 512-element samples of white (or random) noise, pink (or fractal) noise, and brown (or Brownian) noise. Slope values refer to the exponent (alpha) in the expression 1/f α and Whittle values refer to the exact local Whittle estimator of long-range dependency in the data (Shimotsu & Phillips, 2005). See the text for explanations of both. The bottom panels show the power spectra for each patch of noise for wavelengths (traveling windows along the time-series vector) between 28 to 21 shots