deletions | additions       diff --git a/Estimating phases from signal.tex b/Estimating phases from signal.tex  index 1ac138a..af5fa10 100644  --- a/Estimating phases from signal.tex  +++ b/Estimating phases from signal.tex 
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s_t = \exp(\lambda_t) w(\theta_t) + B_t +\xi,   \end{equation}  where $\xi$ is a normally distributed random variable with zero mean and variance $\sigma_em$. $\sigma_{em}$.