Radarteknologi

This handbook is designed to aid electronic warfare and radar systems engineers in making general estimations regarding capabilities of systems. This handbook is sponsored by the NAVAIR Director of Electronic Warfare / Combat Systems Department.

The means of sending and receiving information without physical interaction has always been an area of interest. Communication engineers are keen to improve thequality of the process of exchange of information using wireless methods. Antennas are the most vital part of a wireless network. The reliability of information exchange through a wireless system much depends on the functionality of the antennas, both at the transmitter and receiver. Thus, the design of a near-to-perfect antenna has always been an inevitable ambition of a communication engineer. Design of microstrip anten- nas and slot antennas have remained a globally trending area of research for several decades now. Many novel approaches have evolved for designing microstrip antennas and slot antennas of di¿erent physical and electromagnetic properties at the microwave frequencies. As the need for bandwidth is increasing over the years, researchers are ex- ploring paths to design THz antennas. The already developed know-how for the design of microstrip antennas is found to be handy in this direction. Metamaterials are the arti¿cial structures whose properties are not easily found in nature. From this general- ized notion, the focus of the research and development of metamaterial can be in anypart, if the proposed arti¿cial structure follows the unique electromagnetic properties. The capability to recognize a targeted object accurately by its radar return aloneunder all environmental conditions is of great concern to automatic target recognition (ATR) systems. ATR generally refers to the use of computer processing to detect and recognize the target signature in sensor data. ATR has become increasingly important in modern defence strategy because it permits precision strikes against speci¿c tactical targets with minimized risk and maximized e¿ciency while decreasing surety damage to other objects. A key advantage of using tools such as Arti¿cial Neural Network (ANN) is that, since the algorithms automatically remember the available data, the resulting high-performance algorithms are customized to the variable data.

This book provides an advanced introduction to inertial data processing along with design architectures and algorithms used to aid inertial navigation systems. The emphasis is on the high-end sensors and systems used in aerospace applications, but material is also included that provides an overview of low-cost sensor data processing.

This comprehensive introduction to synthetic aperture radar (SAR) is a practical guide to the analysis, simulation, and design of SAR systems. The video eBook uses constructive examples and real-world collected datasets to demonstrate image registration and autofocus methods. Both two- and three-dimensional image formation algorithms are presented. Hardware, software, and environmental parameters are used to estimate performance limits for SAR operation and utilization. A set of Python and MATLAB software tools is included and provides you with an effective mechanism to analyze and predict SAR performance for various imaging scenarios and applications. Examples which use the software tools are provided at the end of each chapter to reinforce critical SAR imaging topics such as clutter-to-noise ratio, mapping rate, spatial resolution, Doppler bandwidth, pulse repetition frequency, and coherency. This is an excellent resource for engineering professionals working in areas of radar signal processing and imaging as well as students interested in studying SAR.

The Battle of the Beams, penned by the acclaimed author Tom Whipple, is a compelling narrative that will captivate readers from the very first page. This book, published in 2023 by Transworld Publ. Ltd UK, delves into uncharted territories, offering a fresh perspective on its genre. Whipple's masterful storytelling and unique voice make this book a must-read. Don't miss out on this extraordinary literary journey. Grab your copy today from Transworld Publ. Ltd UK.

This book provides an overview of some advanced techniques and technologies developed for polarimetric radars. It covers how the systems are designed to meet challenging performance requirements and also covers some of the most challenging application fields.

This book takes the reader through the development of a Ground Penetrating Radar (GPR) system, stressing the parameters that can be optimized and explaining the theory behind the GPR assessment. The authors provide a detailed discussion of the support tools and the numerical modeling of the system to improve readings from GPR systems.

Radar technology allows for touchless wireless gesture sensing by transmitting radio frequency (RF) signals to the target, accurately detecting gestures for Human Computer Interaction (HCI). Led by researchers from Google's Project Soli, the authors introduce the concept and underpinning technology.

This book outlines the potential for microwave photonics in radar and electronic warfare systems, covering basic concepts and functions, comparing performance with conventional systems, describing its impact on digital signal processing, and exploring integration issues.

This book addresses the growing conflict over use of the radio-frequency spectrum by different systems, such as civil and security applications of radar and consumer use for wireless communications. The increasing demand for this finite resource is driving innovation into new ways in which these diverse systems can cohabit the spectrum.

In 2013 the United States reached a new milestone in radar meteorology, one unsurpassed by any other country in the world due to the American government's transparency policies regarding weather data. All of the Doppler radars were upgraded to make polarimetric measurements, yielding quantities like differential reflectivity, correlation coefficient, and specific differential phase. The entire meteorological community from weather hobbyists all the way to research directors are finding themselves immersed in a deep ocean of new radar data and trying to keep up with the latest improvements. All of these quantities come with a learning curve. For those who don't have the skills to make sense of the journals and technical papers or who just want a reference for the forecast desk, Weather Radar Handbook is designed to provide an excellent summary of the current state of radar meteorology from an operational forecasting perspective.

Source: Wikipedia. Pages: 197. Chapters: Radar, Full body scanner, Mass spectrometry, Oscilloscope, Electricity meter, Measuring instrument, Laser beam profiler, Magnetometer, Multimeter, Pressure measurement, Dynamometer, Gas chromatography, Pulse-Doppler radar, Integrating ADC, Langmuir probe, Test probe, Seismometer, Reflection high-energy electron diffraction, Scanning SQUID microscope, Magnetic tweezers, Reflecting instrument, Odometer, Octant (instrument), Sound level meter, Viscometer, Speedometer, Instrumentation, Network analyzer (electrical), Metal detector, RFQ beam cooler, Millimeter wave scanner, Calorimeter, Proton-transfer-reaction mass spectrometry, Geiger-Müller tube, E-meter, Anemometer, Backstaff, Pedometer, Quadrupole ion trap, Tachograph, Airspeed indicator, Time stretch analog-to-digital converter, Radar gun, Variometer, Fourier transform ion cyclotron resonance, Rheometer. Excerpt: Radar is an object detection system which uses radio waves to determine the range, altitude, direction, or speed of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. The radar dish or antenna transmits pulses of radio waves or microwaves which bounce off any object in their path. The object returns a tiny part of the wave's energy to a dish or antenna which is usually located at the same site as the transmitter. Radar was secretly developed by several nations before and during World War II. The term RADAR was coined in 1940 by the United States Navy as an acronym for RAdio Detection And Ranging. The term radar has since entered English and other languages as the common noun radar, losing all capitalization. The modern uses of radar are highly diverse, including air traffic control, radar astronomy, air-defense systems, antimissile systems; marine radars to locate landmarks and other ships; aircraft anticollision systems; ocean surveillance systems, outer space surveillance and rendezvous systems; meteorological precipitation monitoring; altimetry and flight control systems; guided missile target locating systems; and ground-penetrating radar for geological observations. High tech radar systems are associated with digital signal processing and are capable of extracting useful information from very high noise levels. Other systems similar to radar make use of other parts of the electromagnetic spectrum. One example is "lidar", which uses visible light from lasers rather than radio waves. As early as 1886, German physicist Heinrich Hertz showed that radio waves could be reflected from solid objects. In 1895, Alexander Popov, a physics instructor at the Imperial Russian Navy school in Kronstadt, developed an apparatus using a coherer tube for detecting distant lightning strikes. The next year, he added a spark-gap transmitter. In 1897, while testing this equipment for communicating between tw

This book provides an up-to-date account of the status of research and implementation of automotive radars. The book covers fundamental, novel and essential technologies, such as MIMO, waveform design, and interference mitigation. The book includes chapters on exterior and interior uses of radar technology.

Principles of Modern Radar: Basic Principles is a comprehensive text for courses in radar systems and technology, a professional training textbook for formal in-house courses and for new hires; a reference for ongoing study following a radar short course and a self-study and professional reference book.

This book provides practical and theoretical aspects for automotive antenna measurements. It comprehensively covers all the information you need to design, develop, place, and use antennas and antenna systems in automotive applications. Special chapters are devoted to some of the most advanced topics in this area, including OTA measurements for Vehicle to Everything (V2X) applications, emulation of virtual drive testing, and specific topics for measurements of automotive RADAR systems. You will understand the various measurement techniques specifically for automotive antennas, including chamber design, absorbers, near-to-far field transformation, and some of the newest techniques such as the use of drones. The book presents both well accepted and standard practices and includes innovative methods that help you quickly adapt to the rapidly evolving field of automotive antenna testing today. This is an excellent reference for antenna engineers, automotive system designers, and anyone who measures and designs antennas for automotive applications.

The book sets out to explain the basic principles of radar and, where applicable, historical aspects of the evolution of these principles are dealt with. The study, while underlining the significance of the cavity magnetron, purposely restricts itself to the pre-cavity magnetron era of radar.

This book presents comprehensive coverage of new research into sea clutter characterisation and modelling, radar performance prediction and maritime target detection. The book also includes a summary of sea-clutter scattering characteristics and datasets provided that can be used for modelling.

The book focuses on holography and tomography for quasimonochromatic and broadband signals, and gives detailed coverage of the basic physical methods, inverse problems and mathematical principles.