Good beginners material for Digital Filter's applications Can you please suggest some good study material on digital filter's applications. Any good books, articles, video material would be appreciated. 

Digital Filters are used in many applications.
Here are some nice examples:


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*http://www.eetimes.com/document.asp?doc_id=1225797

*http://www.d-filter.ece.uvic.ca/SupMaterials/Slides/DSP-Ch01-S8,9.pdf

*http://dspace.mit.edu/handle/1721.1/53534

*http://link.springer.com/article/10.1007%2FBF02477811#page-1
One novel way to explore these is to get a Raspberry-Pi and use the built-in Mathematica to do all sorts of filtering and mathematically based experiments.
