http://www-dept.cs.ucl.ac.uk/staff/S.Bhatti/D51-notes/node4.html http://en.wikipedia.org/wiki/Digital_signal_processing http://data-acquisition.globalspec.com/ProductFinder/Data_Acquisition_Signal_Conditioning http://focus.ti.com/dsp/docs/dspsupportt.tsp?sectionId=4&tabId=437&familyId=44