GPS
GPS
This reference and handbook describes theory, algorithms and applications of the Global Positioning System (GPS/Galileo). It is primarily based on source-code descriptions of the KSGsoft program developed by the author at the GFZ in Potsdam. The theory and algorithms are extended and verified for a new development of a multiple functional GPS/Galileo software. Besides the concepts such as the unified GPS data processing method and the numerical solution of the variation equations, as well as the general ambiguity search criteria reported in the first edition, there are several highlights reported. Such as the equivalent principle and its applications, the theory of independent parameterisation, the diagonalisation algorithm, etc. Mathematically rigorous, the book begins with the basics of coordinate and time systems and satellite orbits, as well as GPS observables, and deals with topics such as physical influences, observation equations and their parameterisation, adjustment and filtering, ambiguity resolution, data processing, and the determination of perturbed orbits.
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Price: 159.00
GPS Data Usage Revealed
TeleNav is one of the largest global location based services/mobile resource management (LBS/MRM) services provider in the world. TeleNav GPS Navigator is used for both personal and business purposes, helping individuals make the most of their leisure or work time. They have recently released statistics on how we use our GPS devices. The data shows what and how we search, identifies our daily needs, appetites and so much more.
It's fun to analyze the who, what, why and where of our national GPS usage. For instance, when it comes to our eating out habits, did you know that pizza is the most searched cuisine in the nation? Who knew? Second to our craving for pizza is Chinese food. You would think that burgers would have been high on this list, but it came in at #3 and was followed by American food in 4th place and finally Mexican cuisine at #5.
Let's move on to the nation's most cost-conscious residents. When it comes to searching out the best gas prices before filling up the tank, it looks like the winners live in Phoenix, AZ. The folks in San Antonio, TX came in a close second with Cleveland OH, Detroit MI and Jacksonville FL filling the 3rd, 4th and 5th spots respectively. Nice going for the nation's most thrifty residents.
Where in the country do we find our most impatient citizens? All you need to do is check out the most traffic-plagued and grid-locked cities. According to the TeleNav data, the majority of GPS device users with real-time traffic information and the option to route around traffic mishaps live in Los Angeles CA. Not really a surprise, however, most of you were probably thinking New York City, right?. Surprisingly, the Big Apple seems to be lagging at #3, and was beat out by Washington DC. Rounding out the top 5 are Chicago IL as #4 and Atlanta GA is #5 on this list of hurried and impatient drivers.
Our final category covers the four most searched businesses and their locations, hours of operation etc. If you guessed that #1 on this list is Wal-Mart, you would be correct. No doubt the people in Phoenix are helping to keep Wal-Mart at #1. I'm equally as sure that I've personally had something to do with keeping Starbucks at a solid #2 on the most searched businesses list. With Target as #3, Best Buy as #4 and Bank of America holding at #5, we come to a close.
Bradley Jacobs is a <a href="http://www.gpscity.com">GPS</a> enthusiast and touts the benefits of <a href="http://www.gpscity.com">garmin</a>, tomtom, magellan, lowrance, and other gps system available with unmatched on-line store experience. With over 20 years of direct engineering, marketing, and customer service experience in the GPS industry, he is uniquely qualified to offer top-level support. His favorite distributor, GPS City, sells to thousands of customers in the USA, Canada, and worldwide. They range from small businesses to many Fortune 500 companies. From major universities and technical colleges to the Pentagon, Canada's DND, military and other government institutions.