The Eigencanceler Space Time Adaptive Radar By Eigenanalysis Methods
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The Eigencanceler Space Time Adaptive Radar By Eigenanalysis Methods
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Author : Alexander Haimovich
language : en
Publisher:
Release Date : 1999
The Eigencanceler Space Time Adaptive Radar By Eigenanalysis Methods written by Alexander Haimovich and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.
In airborne surveillance radar applications, adaptive antennas provide for the detection of small targets in severe clutter environments. Adaptive antennas are currently being considered for the design of next generation surveillance platforms. The radar problem is two-dimensional with radar returns being a function of both angle and Doppler. Space-Time Adaptive Processing (STAP) is required for rejection of interferences in the space-time domains. To make STAP feasible for incorporation into future systems, low complexity algorithms are required. The space-time radar problem is well suited to the application of techniques that take advantage of the low-rank properties associated with the interference in such radars. The Eigencanceler is an interference cancellation method based on the spectral decomposition (eigenanalysis) of the space-time covariance matrix. The linear space spanned by the columns of the space-time covariance matrix is formed by the union of the algebraic spaces of the interference and the noise. The Eigencanceler's weight vector is designed to lie in the noise subspace and to provide a prescribed gain to the desired signal. Thus significant computational savings are realized since a Weiner filter requires a matrix inversion, while the eigencanceler is implemented by computing only a limited number of interference eigenvectors.
Applications Of Space Time Adaptive Processing
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Author : Richard Klemm
language : en
Publisher: IET
Release Date : 2004-08-13
Applications Of Space Time Adaptive Processing written by Richard Klemm and has been published by IET this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-08-13 with Technology & Engineering categories.
This text discusses various applications of space-time adaptive processing, including applications in OTH-radar, ground target tracking, STAP in real world clutter environments, jammer cancellation, superresolution, active sonar, seismics and communications. It is divided into two parts: the first dealing with the classical adaptive suppression of airborne and spacebased radar clutter, and the second comprising of miscellaneous applications in other fields such as communications, underwater sound and seismics.
Knowledge Based Radar Detection Tracking And Classification
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Author : Fulvio Gini
language : en
Publisher: John Wiley & Sons
Release Date : 2008-06-09
Knowledge Based Radar Detection Tracking And Classification written by Fulvio Gini and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-06-09 with Science categories.
Discover the technology for the next generation of radar systems Here is the first book that brings together the key concepts essential for the application of Knowledge Based Systems (KBS) to radar detection, tracking, classification, and scheduling. The book highlights the latest advances in both KBS and radar signal and data processing, presenting a range of perspectives and innovative results that have set the stage for the next generation of adaptive radar systems. The book begins with a chapter introducing the concept of Knowledge Based (KB) radar. The remaining nine chapters focus on current developments and recent applications of KB concepts to specific radar functions. Among the key topics explored are: Fundamentals of relevant KB techniques KB solutions as they apply to the general radar problem KBS applications for the constant false-alarm rate processor KB control for space-time adaptive processing KB techniques applied to existing radar systems Integrated end-to-end radar signals Data processing with overarching KB control All chapters are self-contained, enabling readers to focus on those topics of greatest interest. Each one begins with introductory remarks, moves on to detailed discussions and analysis, and ends with a list of references. Throughout the presentation, the authors offer examples of how KBS works and how it can dramatically improve radar performance and capability. Moreover, the authors forecast the impact of KB technology on future systems, including important civilian, military, and homeland defense applications. With chapters contributed by leading international researchers and pioneers in the field, this text is recommended for both students and professionals in radar and sonar detection, tracking, and classification and radar resource management.
Academic Press Library In Signal Processing
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Author : Fulvio Gini
language : en
Publisher: Academic Press
Release Date : 2013-09-10
Academic Press Library In Signal Processing written by Fulvio Gini and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-09-10 with Technology & Engineering categories.
This second volume, edited and authored by world leading experts, gives a review of the principles, methods and techniques of important and emerging research topics and technologies in communications and radar engineering. With this reference source you will: Quickly grasp a new area of research Understand the underlying principles of a topic and its application Ascertain how a topic relates to other areas and learn of the research issues yet to be resolved Quick tutorial reviews of important and emerging topics of research in array and statistical signal processing Presents core principles and shows their application Reference content on core principles, technologies, algorithms and applications Comprehensive references to journal articles and other literature on which to build further, more specific and detailed knowledge Edited by leading people in the field who, through their reputation, have been able to commission experts to write on a particular topic
Space Time Frequency Methods In Adaptive Radar
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Author : Christopher D. Peckham
language : en
Publisher:
Release Date : 2000
Space Time Frequency Methods In Adaptive Radar written by Christopher D. Peckham and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Coding theory categories.
Radar systems may be processed with various space, time and frequency techniques. Advanced radar systems are required to detect targets in the presence of jamming and clutter. This work studies the application of two types of radar systems. It is well known that targets moving along-track within a Synthetic Aperture Radar field of view are imaged as defocused objects. The SAR stripmap mode is tuned to stationary ground targets and the mismatch between the SAR processing parameters and the target motion parameters causes the energy to spill over to adjacent image pixels, thus hindering target feature extraction and reducing the probability of detection. The problem can be remedied by generating the image using a filter matched to the actual target motion parameters, effectively focusing the SAR image on the target. For a fixed rate of motion the target velocity can be estimated from the slope of the Doppler frequency characteristic. The problem is similar to the classical problem of estimating the instantaneous frequency of a linear FM signal (chirp). The Wigner-Ville distribution, the Gabor expansion, the Short-Time Fourier transform and the Continuous Wavelet Transform are compared with respect to their performance in noisy SAR data to estimate the instantaneous Doppler frequency of range compressed SAR data. It is shown that these methods exhibit sharp signal-to-noise threshold effects. The space-time radar problem is well suited to the application of techniques that take advantage of the low-rank property of the space-time covariance matrix. It is shown that reduced-rank methods outperform full-rank space-time adaptive processing when the space-time covariance matrix is estimated from a dataset with limited support. The utility of reduced-rank methods is demonstrated by theoretical analysis, simulations and analysis of real data. It is shown that reduced-rank processing has two effects on the performance: increased statistical stability which tends to improve performance, and introduction of a bias which lowers the signal-to-noise ratio. A method for evaluating the theoretical conditioned SNR for fixed reduced-rank transforms is also presented.
Ieee International Symposium On Phased Array Systems And Technology
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Author :
language : en
Publisher:
Release Date : 2003
Ieee International Symposium On Phased Array Systems And Technology written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Antenna arrays categories.
Space Time Adaptive Processing For Radar
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Author : J. R. Guerci
language : en
Publisher: Artech House Publishers
Release Date : 2015
Space Time Adaptive Processing For Radar written by J. R. Guerci 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 2015 with Adaptive signal processing categories.
Space-time adaptive processing (STAP) is an exciting technology for advanced radar systems that allows for significant performance enhancements over conventional approaches. Based on a time-tested course taught in industry, government and academia, this second edition reviews basic STAP concepts and methods, placing emphasis on implementation in real-world systems. It addresses the needs of radar engineers who are seeking to apply effective STAP techniques to their systems, and serves as an excellent reference for non-radar specialists with an interest in the signal processing applications of STAP. Engineers find the analysis tools they need to assess the impact of STAP on a variety of important radar applications. A toolkit of STAP algorithms and implementation techniques allows practitioners the flexibility of adapting the best methods to their application. In addition, this second edition adds brand new coverage on STAP on Transmitù and Knowledge-Aided STAP (KA-STAP).
Igarss
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Author :
language : en
Publisher:
Release Date : 1981
Igarss written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Earth sciences categories.
Efficient Signal Processing Techniques For Space Time Adaptive Radar
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Author : Younglok Kim
language : en
Publisher:
Release Date : 1998
Efficient Signal Processing Techniques For Space Time Adaptive Radar written by Younglok Kim and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Radar categories.
Conference Record
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Author :
language : en
Publisher:
Release Date : 2002
Conference Record written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Automatic control categories.