D. Lee Fugal has over 30 years of industry experience in Digital Signal Processing (including Wavelets) and Satellite Communications. He has taught upper-division University courses in DSP and in Satellites as well as Wavelet short courses and seminars for Practicing Engineers and Management. He is a Senior Member of IEEE, and a recipient of the IEEE Third Millennium Medal. His ATI course, Wavelets: A Conceptual Practical Approach is being presented June 7-9 in Beltsville, MD.

• Wavelets - Beyond Comparison.

Note: Dr. Robert A. Nelson, P.E., president of Satellite Engineering Research Corporation, a satellite engineering consulting firm in Bethesda, Md., is a contributing writer to Via Satellite and a frequent ATI lecturer, whose course Satellite Communication Systems Engineering: LEO, MEO, GEO covers a broad array of topics in satellite communications, including a detailed technical review of the Iridium system. It will be offered on June 21-23 in Los Angeles, CA, July 11-13 in Middletown, RI, September 20-22 in Boulder, CO and December 6-8 in Melbourne, FL. See ATI's current Schedule of ATI Space, Communications, Radar and Sonar Courses) for additions and updates.

You are invited to visit Satellite Engineering Research Corporation to learn more about satellite engineering and its president, Dr. Nelson.

• The International System of Units (SI) – its history and use in science and industry, appeared first in Via Satellite.
• The Global Positioning System – a detailed look at the miracle of modern navigation, appeared first in Via Satellite.
• Iridium: From Concept to Reality – tracing the origins, theory and the building of the Iridium system, appeared first in Via Satellite.
• Antennas: The Interface With Space – the basics that you need to know about antennas for satellite communications and link analysis.
• Rocket Thrust Equation and Launch Vehicles – the fundamental principles of propulsion and launch vehicle physics.
• Tutorial Articles on Space and Satellite Communications – a collection in PDF format.

Thomas S. Logsdon, is an award-winning rocket scientist with an international reputation. He has written and published 1.5 million words, including 27 nonfiction books. He has delivered 700 lectures, helped design an exhibit for the Smithsonian Institution, applied for a patent, and made guest appearances on 25 television shows.

A highly innovative mathematician and systems analyst in the aerospace industry, Logsdon has helped mastermind such large and complicated projects as the Apollo moon flights, NASA's orbiting Skylab, and the DoD's Navstar navigation system. In the past decade, Logsdon has taught more than one hundred 2-day and 3-day short courses in 18 different countries scattered across five continents.

• Rocket Propulsion Fundamentals
• Using Wounded Dogs to Navigate Ships on the High Seas
• Watching an Apple Falling from a Tree
• Booster Rocket Pioneers
• Routing Ships on the High Seas
• Some Spectacular Space-Age Repairs
• Hazardous Encounters with Orbital Space Debris
• The Growing Hazard of Artificial Space Debris
• The Shot Heard 'Round Aunt Effie's Cabbage Patch

Capt. Captain Raymond B. Wellborn served 13 years in the submarine fleet. He annually teaches a three-day course for the Applied Technology Institute, Submarines and Their Combat Systems.

• The Efficacy of Submarine Warships
• The USS Virginia—America's Newest Nuclear Sub