Hi @arunrami,   This is not an area I have specialty in but I saw your question and was intrigued by it.   I discussed it with some of the folks in our Advanced Analytics R&D team and they supplied me with this slide below as they have been working in Digital Signal Processing projects with SAS.    I hope that helps give you some ideas for your project.  If you would like to discuss with someone from our Advanced Analytics team with experience in this space, let me know and I can put you in touch with them.   Good luck with your project, and keep us posted on how it goes, I think it's a fascinating area of work    Pete PJ ... View more