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MORE ABOUT DSPS THE 100TH EDITION OF THE ARRL HANDBOOK FOR RADIO
COMMUNICATIONS DEVOTES AN ENTIRE CHAPTER CHAPTER 8 TO DSPS AND THEIR
FUNCTIONS.  AMONG THE EXAMPLES INCLUDED ARE SOFTWARE DEFINED RADIOS SDRS.
THE CHAPTER BEGINS BY POINTING OUT THAT THE MATHEMATICAL BASIS FOR DIGITAL
SIGNAL PROCESSING DATES BACK TO WELL KNOWN MATHEMATICAL NAMES IN THE 17TH,
18TH, AND 19TH CENTURIES.  IT WAS NOT UNTIL AFTER THE DIGITAL REVOLUTION IN
THE EARLY 1990S, WITH THE WIDESPREAD AVAILABILITY OF DIGITAL PROCESSING
ESPECIALLY FAST PROCESSING THAT MANY APPLICATIONS MOVED FROM THE
THEORETICAL TO THE PRACTICAL.  THE CHAPTER INCLUDES A FULL PAGE OF
REFERENCES AND OTHER MATERIAL.  THERE ARE ALSO SEVERAL ONLINE FILES
SUPPLEMENTING THIS CHAPTER.  IN THE SAME HANDBOOK EDITION, CHAPTER 10,
TITLED ANALOG AND DIGITAL FILTERING, CONTAINS SEVERAL SECTIONS DEVOTED TO
DIGITAL FILTER DESIGN.  THIS CHAPTER IS SUPPLEMENTED BY MORE THAN A DOZEN
DOWNLOADABLE FILES AND A FULL PAGE OF REFERENCES AND OTHER LISTS OF HELPFUL
MATERIALS.  NEWER APPROACHES, SUCH AS DEEP LEARNING, ARE ALSO USED TO
DESIGN VARIOUS FILTERS.  A DEMONSTRATION OF ONE SUCH APPROACH IS POSTED BY
MATHWORKS AT WWW.  MATHWORKS. COM/ SOLUTIONS/ DEEP LEARNING/ DEEP LEARNING
SIGNAL PROCESSING.  HTML.  THEY ALSO OFFER A FREE ONLINE BOOK ON THE TOPIC.
OTHER NEW APPROACHES CAN BE FOUND UNDER THE GENERAL TOPIC ARTIFICIAL
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