I am trying to implement an algorithm proposed in an old research paper by Ephraim and Malah for my DSP course project. I hope someone can help me with this difficult question. For the clean signal Amplitude Estimator, they used the following equation:
I understand most of the variables in the equation except the Bessel function stuff. Why did they use a Bessel function in here? and most importantly, how can I implement it in Matlab?