Airborne Pulsed Doppler Radar
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Airborne Pulsed Doppler Radar
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Author : Guy V. Morris
language : en
Publisher: Artech House Publishers
Release Date : 1988
Airborne Pulsed Doppler Radar written by Guy V. Morris and has been published by Artech House Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Doppler radar categories.
Presents the basic principles of pulse-doppler radar without resorting to a heavily mathematical treatment. High-, medium-, and low-pulse repetition frequency (PRF) modes are explained and the advantages and disadvantages of each are discussed. Also included are an explanation of the major signal-processing functions of doppler filtering, pulse compression, tracking, synthetic aperture, selection of medium PRFs, and resolving range ambiguities and a discussion of how to predict the performance of a pulse-doppler radar in the presence of noise and clutter. Annotation copyrighted by Book News, Inc., Portland, OR
Pulse Doppler Radar
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Author : Clive Alabaster
language : en
Publisher: IET
Release Date : 2012-06-30
Pulse Doppler Radar written by Clive Alabaster and has been published by IET this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-06-30 with Science categories.
The book is organized into three parts, each one building on the material of the previous sections. Part I (Chapters 1-8) covers the basic principles to lay sound foundations for the following parts of the book. It emphasizes classic processing techniques, especially the fast Fourier transform (FFT), and microwave engineering issues, antennas, and hardware. The second part of the book deals with the theory and techniques specific to pulse Doppler radar. This is subdivided into Part IIA (Chapters 9-10), which covers high PRF pulse Doppler, and Part IIB (Chapters 11-15), which covers medium PRF pulse Doppler. A major theme is that of PRF selection and optimization, other waveform design issues, and the problem of ghosting. While high and medium PRF pulse Doppler techniques have become synonymous with airborne fire control radars, they are used over a broad spectrum of airborne and surface-based radar applications. Part II does emphasize the airborne radar case, but it does not neglect the surface-based radar. Finally, Part III (Chapters 16-19) presents a series of four case studies. Each of these case studies applies the material of Part II whilst also highlighting additional radar techniques (and, in some cases, non-radar considerations) specific to the application. Such is the prevalence of pulse Doppler radars today; the number of case studies that could have been considered is well into double figures. However, the four presented here suffice to illustrate the wide variety of pulse Doppler radar applications.
Designing Clutter Rejection Filters With Complex Coefficients For Airborne Pulsed Doppler Weather Radar
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Author : Dennis A. Jamora
language : en
Publisher:
Release Date : 1993
Designing Clutter Rejection Filters With Complex Coefficients For Airborne Pulsed Doppler Weather Radar written by Dennis A. Jamora and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.
Analysis And Improved Design Considerations For Airborne Pulse Doppler Radar Signal Processing In The Detection Of Hazardous Windshear
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-18
Analysis And Improved Design Considerations For Airborne Pulse Doppler Radar Signal Processing In The Detection Of Hazardous Windshear written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-18 with categories.
High resolution windspeed profile measurements are needed to provide reliable detection of hazardous low altitude windshear with an airborne pulse Doppler radar. The system phase noise in a Doppler weather radar may degrade the spectrum moment estimation quality and the clutter cancellation capability which are important in windshear detection. Also the bias due to weather return Doppler spectrum skewness may cause large errors in pulse pair spectral parameter estimates. These effects are analyzed for the improvement of an airborne Doppler weather radar signal processing design. A method is presented for the direct measurement of windspeed gradient using low pulse repetition frequency (PRF) radar. This spatial gradient is essential in obtaining the windshear hazard index. As an alternative, the modified Prony method is suggested as a spectrum mode estimator for both the clutter and weather signal. Estimation of Doppler spectrum modes may provide the desired windshear hazard information without the need of any preliminary processing requirement such as clutter filtering. The results obtained by processing a NASA simulation model output support consideration of mode identification as one component of a windshear detection algorithm. Lee, Jonggil Unspecified Center AIRBORNE EQUIPMENT; DETECTION; HAZARDS; METEOROLOGICAL RADAR; PULSE DOPPLER RADAR; SIGNAL PROCESSING; STATISTICAL ANALYSIS; WEATHER; WIND SHEAR; WIND VELOCITY; ALGORITHMS; CLUTTER; ERRORS; ESTIMATES; ESTIMATING; HIGH RESOLUTION; LOW ALTITUDE; LOW FREQUENCIES; SIMULATION; SPECTRA...
Introduction To Airborne Radar
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Author : George W. Stimson
language : en
Publisher: SciTech Publishing
Release Date : 1998
Introduction To Airborne Radar written by George W. Stimson and has been published by SciTech Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Technology & Engineering categories.
An introduction to the subject for non-specialists: engineers, technicians, pilots, and aerospace industry marketing, public relations, and customer support personnel. Also a reference for specialists in the field. The completely rewritten and revised Second Edition updates the original published by the Hughes Aircraft Company.
The Pulse Pair Algorithm As A Robust Estimator Of Turbulent Weather Spectral Parameters Using Airborne Pulse Doppler Radar
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Author : Ernest Granville Baxa
language : en
Publisher:
Release Date : 1991
The Pulse Pair Algorithm As A Robust Estimator Of Turbulent Weather Spectral Parameters Using Airborne Pulse Doppler Radar written by Ernest Granville Baxa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Doppler radar categories.
Airborne Radar
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Author : Donald J. Povejsil
language : en
Publisher:
Release Date : 1961
Airborne Radar written by Donald J. Povejsil and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Transportation categories.
Radar And Ew Modeling In Matlab And Simulink
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Author : Carlos A. Dávila
language : en
Publisher: Artech House
Release Date : 2023-10-31
Radar And Ew Modeling In Matlab And Simulink written by Carlos A. Dávila and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-10-31 with Technology & Engineering categories.
This resource covers basic concepts and modeling examples for the three “pillars” of EW: Electronic Attack (EA) systems, Electronic Protection (EP) techniques, and Electronic Support (ES). It develops techniques for the modeling and simulation (M&S) of modern radar and electronic warfare (EW) systems and reviews radar principles, including the radar equation. M&S techniques are introduced, and example models developed in MATLAB and Simulink are presented and discussed in detail. These individual models are combined to create a full end-to-end engineering engagement simulation between a pulse-Doppler radar and a target. The radar-target engagement model is extended to include jamming models and is used to illustrate the interaction between radar and jamming signals and the impact on radar detection and tracking. In addition, several classic EA techniques are introduced and modeled, and the effects on radar performance are explored. This book is a valuable resource for engineers, scientists, and managers who are involved in the design, development, or testing of radar and EW systems. It provides a comprehensive overview of the M&S techniques that are used in these systems, and the book's many examples and case studies provide a solid foundation for understanding how these techniques can be applied in practice.
Air And Spaceborne Radar Systems
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Author : Philippe Lacomme
language : en
Publisher: IET
Release Date : 2001
Air And Spaceborne Radar Systems written by Philippe Lacomme and has been published by IET this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Technology & Engineering categories.
Designed for technicians, student engineers, and engineers working in industry and radar research and development, this book focuses on the history, main principles, functions, modes, properties and specific nature of modern airborne radar, and examines radar's functions, modes, properties, and the nature of modern systems.
Nonlinear Suppression Of Range Ambiguity In Pulse Doppler Radar
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Author : Jon M. Anderson
language : en
Publisher:
Release Date : 2001-12
Nonlinear Suppression Of Range Ambiguity In Pulse Doppler Radar written by Jon M. Anderson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-12 with Doppler radar categories.
Coherent pulse train processing is most commonly used in airborne pulse Doppler radar, achieving adequate transmitter/receiver isolation and excellent resolution properties while inherently inducing ambiguities in Doppler and range. First introduced by Palermo in 1962 using two conjugate LFM pulses, the primary nonlinear suppression objective involves reducing range ambiguity, given the waveform is nominally unambiguous in Doppler, by using interpulse and intrapulse coding (pulse compression) to discriminate received ambiguous pulse responses. By introducing a nonlinear operation on compressed (undesired) pulse responses within individual channels, ambiguous energy levels are reduced in channel outputs. This research expands the NLS concept using discrete coding and processing. A general theory is developed showing how NLS accomplishes ambiguity surface volume removal without requiring orthogonal coding. Useful NLS code sets are generated using combinatorial, simulated annealing optimization techniques - a general algorithm is developed to extended family size, code length, and number of phases (polyphase coding). An adaptive reserved code thresholding scheme is introduced to efficiently and effectively track the matched filter response of a target field over a wide dynamic range, such as normally experienced in airborne radar systems. An evaluation model for characterizing NLS clutter suppression performance is developed - NLS performance is characterized using measured clutter data with analysis indicating the proposed technique performs relatively well even when large clutter cells exist.