Drawing on the authors' more than six years of R&D in location-based information systems (LBIS) as well as their participation in defining the Java ME Location API 2.0, Location-Based Information Systems: Developing Real-Time Tracking Applications provides information and examples for creating real-time LBIS based on GPS-enabled cellular phones. Each chapter presents a general real-time tracking system example that can be easily adapted to target any application domain and that can incorporate other sensor data to make the system "participatory sensing" or "human-centric sensing."
The book covers all of the components needed to develop an LBIS. It discusses cellular phone programming using the Java ME platform, positioning technologies, databases and spatial databases, communications, client- and server-side data processing, and real-time data visualization via Google Maps and Google Earth. Using freely available software, the authors include many code examples and detailed instructions for building your own system and setting up your entire development environment.
Although LBIS applications are still in the beginning stages, they have the potential to transform our daily lives, from warning us about possible health problems to monitoring pollution levels around us. Exploring this novel technology, Location-Based Information Systems describes the technical components needed to create location-based services with an emphasis on nonproprietary, freely available solutions that work across different technologies and platforms.
Precision Aerial Delivery Systems: Modeling, Dynamics, and Control provides an overview of the recent developments in precision aerial cargo delivery from the standpoint of developing guidance, navigation and control (GNC) algorithms for the self-guided parafoil and parachute-based aerial delivery systems (PADS). Developing a robust GNC system involves aerodynamics modeling, structural and parametric system identification, understanding the environment PADS glides through developing and testing suitable navigation solutions, guidance strategies, and controllers. Introduction of ram-air gliding parachutes in Sportive sky diving in the early 1970s ended the era of round canopies. Availability of GPS in the late 1990s opened an era of autonomous vehicles, which boosted an interest in self-guided PADS. A substantial improvement in achieving a better landing accuracy demonstrated by the different-weight PADS during the last decade expanded the area of their potential usage. Miniaturization and availability of sensors allowed developing micro-light PADS that not only have their own market niche, but make it possible for universities to utilize these systems in their curricula and research along with other unmanned vehicles. Thus the intended audience for this book is not only professionals and researchers, but graduate and postgraduate students working in the areas of aerial systems modeling and GNC algorithms design as well. The book is coauthored by eleven experts and addresses the following topics: PADS and measures of their effectiveness; Basic analysis of the ram-air parachute; Key factors affecting PADS landing accuracy; Aerodynamic characterization of parafoils; Equations of motion; Stability and steady-state performance; Guidance, navigation, and control; Glide-angle control; Control of nonglidlng parachute systems; Flight test instrumentation; Parametrical identification of PADS.
All the expert guidance you need to understand, build, and operate GPS receivers<br> <br> The Second Edition of this acclaimed publication enables readers to understand and apply the complex operation principles of global positioning system (GPS) receivers. Although GPS receivers are widely used in everyday life to aid in positioning and navigation, this is the only text that is devoted to complete coverage of their operation principles. The author, one of the foremost authorities in the GPS field, presents the material from a software receiver viewpoint, an approach that helps readers better understand operation and that reflects the forecasted integration of GPS receivers into such everyday devices as cellular telephones. Concentrating on civilian C/A code, the book provides the tools and information needed to understand and exploit all aspects of receiver technology as well as relevant navigation schemes:<br> * Overview of GPS basics and the constellation of satellites that comprise the GPS system<br> * Detailed examination of GPS signal structure, acquisition, and tracking<br> * Step-by-step presentation of the mathematical formulas for calculating a user's position<br> * Demonstration of the use of computer programs to run key equations<br> * Instructions for developing hardware to collect digitized data for a software GPS receiver<br> * Complete chapter demonstrating a GPS receiver following a signal flow to determine a user's position<br> <br> The Second Edition of this highly acclaimed text has been greatly expanded, including three new chapters:<br> * Acquisition of weak signals<br> * Tracking of weak signals<br> * GPS receiver related subjects<br> <br> Following the author's expert guidance and easy-to-follow style, engineers and scientists learn all that is needed to understand, build, and operate GPS receivers. The book's logical flow from basic concepts to applications makes it an excellent textbook for upper-level undergraduate and graduate students in electrical engineering, wireless communications, and computer science.
There is much afoot these days that can and does lead to a number of side roads and dead ends, constituting a barrier, deterring couples and families from reaching their desired destination. Currently, while not well marked or hidden, for many they have become main highways, leading to a dead end of frustration at best or disillusionment at worst.
Marriage and family life are all about relationships. The question is, will the relationship dynamics in the family guide them to their destination or to a dead end? Our universal human desire is to be fulfilled in our life experience. And what better way than in the interactive relationships that can be experienced in an uplifting family adventure?
There are certain effective ways beyond good communication skills for couples to interact with each other and their children. Since we are all human, the ideas expressed will bring challenges, yet the rewards are what we are all looking for in our lives-joy and that elusive state called fulfillment.
This book reveals the roads they took in order to reach that destination as a family with a peek at what many people hope will work but doesn't.
Archaeological data now show that relatively intense human adaptations to coastal environments developed much earlier than once believed - more than 125,000 years ago. With our oceans and marine fisheries currently in a state of crisis, coastal archaeological sites contain a wealth of data that can shed light on the history of human exploitation of marine ecosystems and marine conservation principles. This volume, the first global survey of these topics, brings together researchers working in coastal areas around the world to address the links between archaeology, history, marine ecology, and fisheries management. In eleven case studies from the Americas, the Pacific Islands, the North Sea, the Caribbean, Europe, and Africa, they cover diverse marine ecosystems ranging from kelp forests to coral reefs and mangroves and reach into deep history to discover how humans interacted with and affected these aquatic environments.
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