The only comprehensive guide to Kalman filtering and its applications to real-world GPS/INS problems

Written by recognized authorities in the field, this book provides engineers, computer scientists, and others with a working familiarity with the theory and contemporary applications of Global Positioning Systems (GPS), Inertial Navigational Systems, and Kalman filters. Throughout, the focus is on solving real-world problems, with an emphasis on the effective use of state-of-the-art integration techniques for those systems, especially the application of Kalman filtering. To that end, the authors explore the various subtleties, common failures, and inherent limitations of the theory as it applies to real-world situations, and provide numerous detailed application examples and practice problems, including GPS-aided INS, modeling of gyros and accelerometers, and WAAS and LAAS.

Drawing upon their many years of experience with GPS, INS, and the Kalman filter, the authors present numerous design and implementation techniques not found in other professional references, including original techniques for:
* Representing the problem in a mathematical model
* Analyzing the performance of the GPS sensor as a function of model parameters
* Implementing the mechanization equations in numerically stable algorithms
* Assessing computation requirements
* Testing the validity of results
* Monitoring GPS, INS, and Kalman filter performance in operation

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This book presents a unique method for decomposing a computer program along its execution paths, for simplifying the subprograms so produced, and for recomposing a program from its subprograms. This method enables us to divide and conquer the complexity involved in understanding the computation performed by a program by decomposing it into a set of subprograms and then simplifying them to the furthest extent possible. The resulting simplified subprograms are generally more understandable than the original program as a whole. The method may also be used to simplify a piece of source code by following the path-oriented method of decomposition, simplication, and recomposition. The analysis may be carried out in such a way that the derivation of the analysis result constitutes a correctness proof. The method can be applied to any source code (or portion thereof) that prescribes the computation to be performed in terms of assignment statements, conditional statements, and loop constructs, regardless of the language or paradigm used.

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Unwritten rules of Wall Street–what works, what doesn't, and how investors can tell the difference

Investing is governed by unofficial rules, passed to investors through brokers, the financial press, and even fellow investors. For more than a decade, in two previous editions, Stock Market Rules has helped investors separate the most valuable of these maxims from the meaningless and even potentially harmful. But with recent market turbulence and scandals blindsiding millions of investors, the time has come for a new, updated edition.

Stock Market Rules, Third Edition, is that book, an in-depth, up-to-date examination of the 50 axioms that will most help investors gain the edge in today's technologically supercharged markets. Investors needing authoritative, hands-on guidance will look to this updated edition for its:

• Short sections covering the 50 most immediately useful rules
• Easy-to-read yet analytical approach
• Arrangement by research, strategy, and other major topic areas

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The Internet is bigger and better than what a mere browser allows. "Webbots, Spiders, and Screen Scrapers" is for programmers and businesspeople who want to take full advantage of the vast resources available on the Web. There's no reason to let browsers limit your online experience-especially when you can easily automate online tasks to suit your individual needs. Learn how to write webbots and spiders that do all this and more: Programmatically download entire websites Effectively parse data from web pages Manage cookies Decode encrypted files Automate form submissions Send and receive email Send SMS alerts to your cell phone Unlock password-protected websites Automatically bid in online auctions Exchange data with FTP and NNTP servers Sample projects using standard code libraries reinforce these new skills. You'll learn how to create your own webbots and spiders that track online prices, aggregate different data sources into a single web page, and archive the online data you just can't live without. You'll learn inside information from an experienced webbot developer on how and when to write stealthy webbots that mimic human behavior, tips for developing fault-tolerant designs, and various methods for launching and scheduling webbots. You'll also get advice on how to write webbots and spiders that respect website owner property rights, plus techniques for shielding websites from unwanted robots. As a bonus, visit the author's website to test your webbots on sample target pages, and to download the scripts and code libraries used in the book. Some tasks are just too tedious-or too important!- to leave to humans. Once you've automated your online life, you'll never leta browser limit the way you use the Internet again.

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