GPS / GNSS Operation for Engineers & Technical Professionals
Tom Logsdon was a young and inexperienced mathematician when he was given a marvelous new assignment. His boss ask them to design the best possible constellation of satellites for the GPS radionavigation system and to explain the rationale behind its selection.
Three days later--without using any computers!--Logsdon came up with a solution. How had he done it in such a short time? Simply by drawing geometrical sketches on 13 oversized quad pad sheets with colored marking pens and colored pencils. Five years later, the constellation he had selected was quietly growing up along the space frontier. It consisted of 24 satellites, 11,000 nautical miles high, whizzing around our home planet at 8600 miles an hour.
The descendents of those sleek little satellites are now serving 5.5 billion satisfied users scattered around the globe. And soon a swarm of 128 similar navigation satellites will be orbiting high above the stratosphere. They are being built and launched by six sovereign entities: the Americans, the Russians, the Europeans, the Chinese, the Japanese, and the Indians.
In this broadranging four-day short course, Mr. Logsdon will show you how he designed the initial constellation without computers and how they are revolutionizing so many important enterprises including military operations. He will also review the salient features of the various international competitors to the GPS and explain how they are helping one another function more effectively in practical situations.
Come to the classroom ready to learn and you will come away four days later with a solid understanding of the operating principles of today's advanced radionavigation systems together with a fresh appreciation for the GPS and her competitors, their complicated signal structures and their use in conjunction with differential navigation, integrated inertial navigation equipment and today's marvelously efficient Kalman filtering techniques.
Armed with more than 400 digital briefing charts shimmering with color and up-to-date knowledge of the fundamentals of radionavigation, Mr. Logsdon will instruct, inspire, and entertain you from the moment you walk into the classroom until you leave with a warm smile of satisfaction on your face.Read instructor's GPS tutorials.
Tom Logsdon respected expert on GPS and other satellites systems who teaches several courses for ATIcourses including GPS & Other Radionavigation Satellites , Fundamentals of Orbital & Launch Mechanics, Integrated Navigation Systems , and Introduction to Space.
Written by Robert A. Nelson and Updated by Tom Logsdon (May 2013)
The Global Positioning System (GPS) was originally designed jointly by the U.S. Navy and the U.S. Air Force to permit the determination of position and time for military troops and guided missiles. However, GPS has also become the basis for position and time measurement by scientific laboratories and a wide spectrum of applications in a multi-billion dollar commercial industry. Roughly one billion GPS receivers have been sold to delighted consumers throughout the world. Thirty-one GPS satellites are currently broadcasting navigation signals from their high-altitude vantage points in space.
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