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DSP:

General Information

Have you noticed how everything is becoming digital these days -- DSP filters, DSP modems, DSP transcievers and more -- and for good reason. Digital representation of signals over their analog counterparts have many advantages:
  • Fewer Components
  • Stable, deterministic performance
  • Wide range of applications
  • No filter adjustments
  • Filters with much closer tolerances
  • Adaptive filters easily implemented
Digital Signal Processing is so pervasive in everything an amateur radio operator does and it is becoming an important tool. These web pages are designed to introduce amateur experimenters to DSP. They will point you to the many resources on the web and provide a forum for amateur DSP experimentation.

About these pages
The purpose of these web pages are to introduce the prospective experimenter to the topic of DSP.
  • Text books
  • Sources of DSP information on the Interent
  • Equipment that can be purchased: commercial off the shelf units and experimental evaluation units
  • A listing of the extensive library of software written by amateurs for various devices (organized by function and DSP processor)
If you are ready, read on . . . or jump to the topics by clicking below.

How does DSP work?

    One good place to start is The ARRL Handbook. It has an entire chapter on DSP written by Jon Bloom, KE3Z. The chapter explains DSP Fundamentals to DSP Hardware and Development Tools. It is a good place to start and get an overview on the extensive topic of DSP. Hopefully, after reading the chapter you will have a good idea of what DSP is and how it works.

    A second place to start is text books. Texts are excellent sources of information on DSP. They range from introductory to advanced levels. Texts can explain various topics of DSP chapter by chapter giving you step by step instruction on DSP. Here is a biblography of DSP texts.

    Finally, there are several articles written about DSP in QST, QEX, Ham Radio, and Communications Quarterly.

Presentations

How can I get started in DSP?

    There are a number of ways: commercial equipment, evaluation modules or starter kits, and building a kit.

    Amateur Radio

    Evaluation modules or starter kits

      There are also a number of evaluation modules or starter kits (no assembly required) that chip manufactures produce that allow prospective developers (and experimenters) to explore the capabilities of their DSP chips. These evaluation modules have become very popular with amateurs experimenting with DSP because of their low cost. Amateurs have produced a tremendous amount of software for these modules that perform functions from filters to modems. A listing of software by unit and function are given below. The evaluation modules include:

    Commercial Equipment

What other DSP information is available on the Internet?

    For starters, there is a news group entitled comp.dsp. There is a comp.dsp FAQ available in HTML format.

    Next stop is the DSP Internet Resource List.

    Hopefully these sites will get you started leaping from one site to the next and answering a few more questions you may have.

References

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