Figure 8

Denoising/detrending of synthetic signal A. Denoising/detrending of the synthetic signal A (Figure 4) using the DWT. The upper panel displays the output of the DWT processing of signal A on the basis of p-value, retaining only those coefficients with a p-value of less than 0.05. The lower panel displays the output of the DWT processing of signal A by hard-thresholding period boundaries. Note that p-value based processing typically retains a non-zero mean as well as moving baselines, since these tend to be statistically significant.