Описание: Kaplan's 4 Practice Tests for the TOEFL provides printed exams and expert explanations to help you master your English abilities in reading, writing, listening, and speaking. Test-like Listening tracks, realistic practice questions, and additional online resources give you everything you need to succeed on the TOEFL. The Most PracticeFour full-length practice exams in the book and onlineExam-like questions with detailed answer explanations help you build your Listening, Reading, Speaking, and Writing skillsListening tracks for test-like practice onlineExpert GuidanceWe know the test: The Kaplan team ensures our practice questions and study materials are true to the testKaplan's books and practice questions are written by experts who know students-every explanation is written to help you learnWe invented test prep-Kaplan (www.kaptest.com) has been helping students for 80 years, and our proven strategies have helped legions of students achieve their dreams
Описание: The Global Positioning System (GPS) may be used in conjunction with Inertial Navigation Systems (INS) for tracking and navigation and may be applied in the civilian and military sectors to track devices, to locate people and objects, in the air, on the ground, or at sea.
Автор: Petrovski Название: GPS, GLONASS, Galileo, and BeiDou for Mobile Devices ISBN: 1107035848 ISBN-13(EAN): 9781107035843 Издательство: Cambridge Academ Рейтинг: Цена: 15523.00 р. Наличие на складе: Нет в наличии.
Описание: Get up to speed on all types of GNSS for mobile applications. With step-by-step algorithms and practical methods you will understand the capabilities of current systems and be able to apply your new knowledge to unlocking the potential of future mobile positioning.
Автор: Grebennikov Название: Broadband RF and Microwave Amplifiers ISBN: 1138800201 ISBN-13(EAN): 9781138800205 Издательство: Taylor&Francis Рейтинг: Цена: 12554.00 р. Наличие на складе: Нет в наличии.
Описание:
Broadband RF and Microwave Amplifiers provides extensive coverage of broadband radio frequency (RF) and microwave power amplifier design, including well-known historical and recent novel schematic configurations, theoretical approaches, circuit simulation results, and practical implementation strategies. The text begins by introducing two-port networks to illustrate the behavior of linear and nonlinear circuits, explaining the basic principles of power amplifier design, and discussing impedance matching and broadband power amplifier design using lumped and distributed parameters. The book then:
Shows how dissipative or lossy gain-compensation-matching circuits can offer an important trade-off between power gain, reflection coefficient, and operating frequency bandwidth
Describes the design of broadband RF and microwave amplifiers using real frequency techniques (RFTs), supplying numerous examples based on the MATLAB(R) programming process
Examines Class-E power amplifiers, Doherty amplifiers, low-noise amplifiers, microwave gallium arsenide field-effect transistor (GaAs FET)-distributed amplifiers, and complementary metal-oxide semiconductor (CMOS) amplifiers for ultra-wideband (UWB) applications
Broadband RF and Microwave Amplifiers combines theoretical analysis with practical design to create a solid foundation for innovative ideas and circuit design techniques.
Название: Systems Engineering Handbook ISBN: 1118999401 ISBN-13(EAN): 9781118999400 Издательство: Wiley Рейтинг: Цена: 10763.00 р. Наличие на складе: Поставка под заказ.
Описание: Describes key process activities performed by systems engineers and other engineering professionals throughout the life cycle of a system. This book covers a wide range of fundamental system concepts that broaden the thinking of the systems engineering practitioner. It includes a reference on the discipline and practice of systems engineering.
Описание: This book discusses global mobile satellite communications (GMSC) for maritime, land (road and rail), and aeronautical applications.
Автор: Fulvio Ananasso; Francesco Vatalaro Название: Mobile and Personal Satellite Communications ISBN: 3540199330 ISBN-13(EAN): 9783540199335 Издательство: Springer Рейтинг: Цена: 12157.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: The shift from network-oriented to user-oriented services in the 80s and early 90s has increased the penetration of satellite services into the user community. Parallel to this, worldwide interest has arisen in Personal Communication Services (PCS), where satellites play a crucial role in the provision of PCS all over the world.
Автор: Stojce Dimov Ilcev Название: Global Mobile Satellite Communications ISBN: 1441954368 ISBN-13(EAN): 9781441954367 Издательство: Springer Рейтинг: Цена: 36570.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Global mobile satellite communications (GMSC) are specific satellite communication systems for maritime, land and aeronautical applications.
Автор: Marina Ruggieri Название: Mobile and Personal Satellite Communications 3 ISBN: 1852330457 ISBN-13(EAN): 9781852330453 Издательство: Springer Рейтинг: Цена: 15372.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book of Proceedings contains papers of the "Third European Workshop on Mobile/Personal Satcoms" (EMPS `98), held in Venice, Italy, November 1998. As EMPS has been conceived to gather trends and novelties in the field of mobile/personal satcoms, it is tightly matched to the natural evolution of the field itself.
Автор: Fujimoto Название: Modern Small Antennas ISBN: 0521877865 ISBN-13(EAN): 9780521877862 Издательство: Cambridge Academ Рейтинг: Цена: 11246.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: If you need to design and develop small antennas, this complete cutting-edge guide covers everything you need to know, from fundamentals and basic theory to design techniques and evaluation. Many practical examples are included from a range of wireless systems, whilst a glossary brings you up to speed on the latest terminology.
Автор: Francesco Vatalaro; Fulvio Ananasso Название: Mobile and Personal Satellite Communications 2 ISBN: 354076111X ISBN-13(EAN): 9783540761112 Издательство: Springer Рейтинг: Цена: 15372.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book of proceedings contains papers for the Second European Workshop on Mobile/Personal Satcoms (EMPS `96), held in Rome, Italy, and hosted by the Consiglio Nazionale delle Ricerche. We issued a formal call for papers, instead oflimiting the selection process to invited papers as was in the past: 60 papers were received from 18 countries.
Описание: The subject is "Virtual Roaming for data services" and "Seamless Technology change" also called "Number Continuity". "Virtual Roaming for voice and SMS" was covered in one of the author's previous book. "Virtual Roaming" means that it allows a subscriber to visit a network which his home network does not have an agreement with. The "Seamless Technology change" allows a user to keep all his services including reception of calls and SMS sent to his usual number when he switches his GSM to a Satellite phone or to WiFi. The implementation of Seamless Technology change uses the SS7 Roaming Hub and GTP Hubs technology explained in the first part of the book. The book also contains chapters explaining in detail the steering and anti-steering of roaming, LTE Serving Mobile Location Centers, and Advanced Policy and Charging implementations in LTE and 3G. This is to be used as an easy reference book. All the relevant references to the standards are included chapter by chapter. This is the first book on the two main subjects of Virtual Data Roaming and Seamless Technology change.
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