deletions | additions       diff --git a/Estimating phases from signal.tex b/Estimating phases from signal.tex  index 2313d57..c5ea60b 100644  --- a/Estimating phases from signal.tex  +++ b/Estimating phases from signal.tex 
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\textrm{d}\theta_t =& \frac{2\pi}{T_1}\textrm{d}t + \sigma_{\theta}\textrm{d}W_t\\  \end{align*}  We added to the model  a multiplicative amplitude term $A_t$ that allows to explain variations in the amplitude of the signal, and is modeled as an Ornstein-Uhlenbeck process $\lambda_t$ such that $A_t = \exp(\lambda_t)$. \begin{align*}   \textrm{d}\lambda_t =& -\gamma_{\lambda} (\lambda_t-\mu_{\lambda}) \textrm{d}t + \sigma_{\lambda}\textrm{d}W_t\\