Methods for Direction-Finding of Direct-Sequence Spread-Spectrum Signals

Methods for Direction-Finding of Direct-Sequence Spread-Spectrum Signals PDF Author: Magnus Finne
Publisher: DIANE Publishing
ISBN: 0788135538
Category : Direction finding
Languages : en
Pages : 64

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Book Description
The use of spread-spectrum signals has increased dramatically in military radio communications. This report locates methods for direction-finding direct-sequence spread-spectrum (DS/SS) signals; digital methods are of special interest. A literature survey was conducted to see if there are any known methods. Investigated if a DS/SS detection method using a square-law detector can be extended to direction-finding. By use of computer simulations, show the performance of the methods found. Benefits and problems are also discussed.

Methods for Direction-Finding of Direct-Sequence Spread-Spectrum Signals

Methods for Direction-Finding of Direct-Sequence Spread-Spectrum Signals PDF Author: Magnus Finne
Publisher: DIANE Publishing
ISBN: 0788135538
Category : Direction finding
Languages : en
Pages : 64

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Book Description
The use of spread-spectrum signals has increased dramatically in military radio communications. This report locates methods for direction-finding direct-sequence spread-spectrum (DS/SS) signals; digital methods are of special interest. A literature survey was conducted to see if there are any known methods. Investigated if a DS/SS detection method using a square-law detector can be extended to direction-finding. By use of computer simulations, show the performance of the methods found. Benefits and problems are also discussed.

Serial Communication Protocols and Standards

Serial Communication Protocols and Standards PDF Author: Dawoud Shenouda Dawoud
Publisher: CRC Press
ISBN: 1000793753
Category : Science
Languages : en
Pages : 533

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Book Description
Data communication standards are comprised of two components: The “protocol” and “Signal/data/port specifications for the devices involved”. The protocol describes the format of the message and the meaning of each part of the message. To connect any device to the bus, an external device must be used as an interface which will put the message in a form which fulfills all the electrical specifications of the port. These specifications are called the “Standard”. The most famous such serial communication standard is the RS-232. In IT technology, Communication can be serial or parallel. Serial communication is used for transmitting data over long distances. It is much cheaper to run the single core cable needed for serial communication over a long distance than the multicore cables that would be needed for parallel communication. It is the same in wireless communication: Serial communication needs one channel while parallel needs multichannel. Serial Communication can also be classified in many other ways, for example synchronous and asynchronous; it can also be classified as simplex, duplex and half duplex. Because of the wide spread of serial communication from home automation to sensor and controller networks, there is a need for a very large number of serial communication standards and protocols. These have been developed over recent decades and range from the simple to the highly complicated. This large number of protocols was necessary to guarantee the optimum performance for the targeted applications. It is important for communication engineers to have enough knowledge to match the right protocol and standard with the right application. The main aim of this book is to provide the reader with that knowledge The book also provides the reader with detailed information about:- Serial Communication- Universal Asynchronous Receiver Transmitter (UART)- Universal Synchronous/Asynchronous Receiver Transmitter (USART - Serial Peripheral Interface (SPI) - eSPI- Universal Serial Bus (USB)- Wi-Fi- WiMax- Insteon The details of each technology including specification, operation, security related matters, and many other topics are covered. The book allocates three chapters to the main communication standards. These chapters cover everything related to the most famous standard RS-232 and all its variants. Other protocols such as: I2C, CAN, ZigBee, Z-Wave, Bluetooth, and others, are the subject of the authors separate book “Microcontroller and Smart Home Networks”.

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1102

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Book Description


Security Engineering

Security Engineering PDF Author: Ross Anderson
Publisher: John Wiley & Sons
ISBN: 1119642833
Category : Computers
Languages : en
Pages : 1232

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Book Description
Now that there’s software in everything, how can you make anything secure? Understand how to engineer dependable systems with this newly updated classic In Security Engineering: A Guide to Building Dependable Distributed Systems, Third Edition Cambridge University professor Ross Anderson updates his classic textbook and teaches readers how to design, implement, and test systems to withstand both error and attack. This book became a best-seller in 2001 and helped establish the discipline of security engineering. By the second edition in 2008, underground dark markets had let the bad guys specialize and scale up; attacks were increasingly on users rather than on technology. The book repeated its success by showing how security engineers can focus on usability. Now the third edition brings it up to date for 2020. As people now go online from phones more than laptops, most servers are in the cloud, online advertising drives the Internet and social networks have taken over much human interaction, many patterns of crime and abuse are the same, but the methods have evolved. Ross Anderson explores what security engineering means in 2020, including: How the basic elements of cryptography, protocols, and access control translate to the new world of phones, cloud services, social media and the Internet of Things Who the attackers are – from nation states and business competitors through criminal gangs to stalkers and playground bullies What they do – from phishing and carding through SIM swapping and software exploits to DDoS and fake news Security psychology, from privacy through ease-of-use to deception The economics of security and dependability – why companies build vulnerable systems and governments look the other way How dozens of industries went online – well or badly

EW 103

EW 103 PDF Author: David Adamy
Publisher: Artech House
ISBN: 1596933887
Category : Technology & Engineering
Languages : en
Pages : 349

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Book Description
The third book in the bestselling Artech House EW 100 series is dedicated entirely to the practical aspects of electronic warfare against enemy communication. From communications math (mainly simple dB formulas), receiving systems, and signals, to communications emitter location, intercept, and jamming, this comprehensive volume covers all the key topics in the field.

EW 102

EW 102 PDF Author: David Adamy
Publisher: Artech House
ISBN: 9781580536875
Category : Technology & Engineering
Languages : en
Pages : 304

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Book Description
Serving as a continuation of the bestselling book EW 101: A First Course in Electronic Warfare, this new volume is a second book based on the popular tutorials featured in the Journal of Electronic Defense. Without delving into complex mathematics, this book lets you understand important concepts central to EW, so you gain a basic working knowledge of the technologies and techniques deployed in today's EW systems.

Wireless Communication And Sensor Network - Proceedings Of The International Conference (Wcsn 2015)

Wireless Communication And Sensor Network - Proceedings Of The International Conference (Wcsn 2015) PDF Author: Salah Bourennance
Publisher: World Scientific
ISBN: 981314002X
Category : Technology & Engineering
Languages : en
Pages : 1047

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Book Description
This proceedings volume collects the most up-to-date, comprehensive and state-of-the-art knowledge on wireless communication, sensor network, network technologies, services and application.Written by world renowned researchers, each chapter is original in content, featuring high-impact presentations and late-breaking contributions.Researchers and practitioners will find this edition a useful resource material and an inspirational read.

International Electronic Countermeasures Handbook

International Electronic Countermeasures Handbook PDF Author: Horizon House
Publisher: Artech House
ISBN: 9781580538985
Category : Electronic countermeasures
Languages : en
Pages : 188

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Book Description
This updated 2004 Edition of the popular International Electronic Countermeasures Handbook contains new and revised entries for defense electronics systems from all nations, including Russian, Eastern European, and Chinese electronic-warfare, electronic-intelligence-gathering, and guided-weapon systems. Packed with more system technical data, photographs, and operational details than ever, the new edition is a must-have resource for military and industry professionals who are concerned with defense electronics in the modern world. The book also describes known threats, providing details of missiles which can be launched from static and mobile ground-based sites, from ships, or from aircraft. Moreover, it presents comprehensive information on the status, parameters, deployment, and manufacturer of each system. This invaluable handbook includes every important class of military surveillance and electronic intelligence system for ESM (electronic support measures); SIGINT (signals intelligence); COMINT (communications intelligence); and DF (direction finding) systems.

Spread Spectrum Systems

Spread Spectrum Systems PDF Author: Robert Clyde Dixon
Publisher: Wiley-Interscience
ISBN:
Category : Science
Languages : en
Pages : 544

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Book Description


Space-time Array Communications: Vector Channel Estimation And Reception

Space-time Array Communications: Vector Channel Estimation And Reception PDF Author: Jason Wee Peng Ng
Publisher: World Scientific Publishing Company
ISBN: 1911299255
Category : Computers
Languages : en
Pages : 182

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Book Description
Space-time array communications have gained a great deal of interest in recent years. Its superior performance in practical multipath propagation environments has established it as a core aspect in next generation mobile networks, as well as several portable wireless communication systems. In fact the employment of the sensor array component has already been provided for in the current UMTS standard, and there is presently a major thrust to make space-time processing an important part of 3G/4G networks. This book hence attempts to bridge the knowledge gap, looking at the integration of two emerging technologies from an array manifold perspective — space-time array processing and spread spectrum multiple access communications. It covers a range of novel multiuser channel estimation and reception techniques, which is designed to provide mitigations of the various associated channel impairments in accordance to its environmental context. For convenience of the readers, the book is written in a self-contained modular format with its mathematical frameworks and tools readily extendable to other research domains./a