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Target Identification Theory For Synthetic Aperture Radar Images Using Physics Based Signatures
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Book Synopsis Target Identification Theory for Synthetic Aperture Radar Images Using Physics-based Signatures by : Chen-Pang Yeang
Download or read book Target Identification Theory for Synthetic Aperture Radar Images Using Physics-based Signatures written by Chen-Pang Yeang and published by . This book was released on 1999 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Target Scattering Mechanism in Polarimetric Synthetic Aperture Radar by : Si-Wei Chen
Download or read book Target Scattering Mechanism in Polarimetric Synthetic Aperture Radar written by Si-Wei Chen and published by Springer. This book was released on 2018-04-21 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents new and advanced concepts, theories and methodologies in polarimetric synthetic aperture radar (PolSAR) target scattering mechanism modeling and interpretation, which is dedicated to bridge the gap between the acquired data and practical applications. It proposes adaptive and generalized polarimetric target decompositions, to precisely interpret the target scattering mechanisms. Further, it develops a uniform polarimetric matrix rotation theory and a polarimetric coherence pattern visualization and interpretation tool to completely explore and characterize the deep information and target signatures in the rotation domain. Finally, it demonstrates land cover classification, target detection, natural disaster damage investigation and mapping applications which use the novel scattering mechanism investigation tools. The book is a valuable resource for senior undergraduate and postgraduate students, teachers, engineers and researchers in the field of microwave remote sensing, radar polarimetry, imaging radar, and environmental studies.
Book Synopsis A New Target Detector Based on Geometrical Perturbation Filters for Polarimetric Synthetic Aperture Radar (POL-SAR) by : Armando Marino
Download or read book A New Target Detector Based on Geometrical Perturbation Filters for Polarimetric Synthetic Aperture Radar (POL-SAR) written by Armando Marino and published by Springer Science & Business Media. This book was released on 2012-01-26 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents a groundbraking methodology for the radar international community. The detection approach introduced, namely perturbation analysis, is completey novel showing a remarkable capability of thinking outside the box. Perturbation analysis is able to push forward the performance limits of current algorithms, allowing the detection of targets smaller than the resolution cell and highly embedded in clutter. The methodology itself is extraordinary flexibe and has already been used in two other large projects, funded by the ESA (European Space Agency): M-POL for maritime surveillance, and DRAGON-2 for land classification with particular attention to forests. This book is a perfectly organised piece of work where every detail and perspective is taken into account in order to provide a comprehensive vision of the problems and solutions.
Book Synopsis Algorithms for Synthetic Aperture Radar Imagery V by : Edmund G. Zelnio
Download or read book Algorithms for Synthetic Aperture Radar Imagery V written by Edmund G. Zelnio and published by SPIE-International Society for Optical Engineering. This book was released on 1998 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt: A presentation of algorithms for synthetic aperture radar imagery. It studies: image formation; image registration and fusion; image quality assessment; and feature extraction.
Book Synopsis Physics of Automatic Target Recognition by : Firooz Sadjadi
Download or read book Physics of Automatic Target Recognition written by Firooz Sadjadi and published by Springer Science & Business Media. This book was released on 2007-09-04 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines the roles of sensors, physics–based attributes, classification methods, and performance evaluation in automatic target recognition. It details target classification from small mine–like objects to large tactical vehicles. Also explored in the book are invariants of sensor and transmission transformations, which are crucial in the development of low latency and computationally manageable automatic target recognition systems.
Book Synopsis Target Identification Using Radar Imagery and Moment Methods by : George A. Ioannidis
Download or read book Target Identification Using Radar Imagery and Moment Methods written by George A. Ioannidis and published by . This book was released on 1980 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past, most radar target recognition techniques have concentrated on the use of one-dimensionsal target signatures. However, the development of the Synthetic Aperture Radar (SAR) and the recent development of the Inverse Synthetic Aperture (ISAR) technologies have made it possible to obtain radar images of targets and thus allow the use of two-dimensional pattern classification schemes for automatic radar target recognition. One such two-dimensional shape recognition scheme is a technique known as the method of moments, which has been successfully applied to the recognition of objects imaged in the visible and infrared spectrum. The images used in this investigation were generated by the application of the ISAR technique to turntable radar data and also data obtained from flying aircraft targets.
Book Synopsis Study for Material Identification Via Synthetic Aperture Radar by :
Download or read book Study for Material Identification Via Synthetic Aperture Radar written by and published by . This book was released on 2004 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent advances in the understanding of the interactions of radiofrequency waveforms with different materials have yielded the potential of performing remote identification of different materials within synthetic aperture radar (SAR) imagery. The immediate reflections from typical targets and foliage are not unique with regard to differing material compositions - it is only the much weaker precursor signals that contain the required discrimination information. In effect, the immediate returned radar energy from neighboring foliage is likely to obscure precursor signatures that provide for the identification of specific materials, unless sophisticated signal processing algorithms are developed and applied in order to extract this fragile information. SAIC has developed a multi-delay-resolution processing technique that offers to separate the delayed radar echoes resulting from different material reflectors for the purpose of performing remote characterization of material objects. This technique separates "immediate reflection" echoes in an image from echoes that are the result of delayed material echoes and then maps each set of reflections to a metrically correct image space. SAIC's technique addresses the challenging problem of separating the relatively weak radar returns due to the delayed material echoes from those of the background clutter environment.
Book Synopsis Algorithms for Synthetic Aperture Radar Imagery by :
Download or read book Algorithms for Synthetic Aperture Radar Imagery written by and published by . This book was released on 2001 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Feature-based Exploitation of Multidimensional Radar Signatures by : Ann Marie Raynal
Download or read book Feature-based Exploitation of Multidimensional Radar Signatures written by Ann Marie Raynal and published by . This book was released on 2008 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: An important problem in electromagnetics is that of extracting, interpreting, and exploiting scattering mechanisms from the scattered field of a target. Termed "features", these physics-based descriptions of scattering phenomenology have many and diverse applications such as target identification, classification, validation, and imaging. In this dissertation, the feature extraction, analysis, and exploitation of both synthetic and measured multidimensional radar signatures are investigated. Feature extraction is first performed on simulated data of the highfrequency electromagnetics solver Xpatch. The scattered, far-field of an electrically large target is well-approximated by a discrete set of points known as scattering centers. Xpatch yields three-dimensional (3D) scattering centers of a target one aspect angle at a time by using the shooting and bouncing ray technique and a computer-aided design (CAD) model of the target. The feature extraction technique groups scattering centers across multiple angles that pertain to the same scattering mechanism. Using a nearest neighbor clustering algorithm, this association is carried-out in a multidimensional grid of scattering center angle, bounce, and spatial location, wherein distinct scattering mechanisms are assumed to be non-overlapping. Synthetic monostatic and bistatic feature sets are extracted and analyzed using this algorithm. Additionally, feature sets are exploited to assist humans in electromagnetic CAD model validation. The generation of target CAD models is a challenging, resource-limited, and human-experience-based process. Target features extracted from a CAD model in question are compared individually to measured data from the physical target by projection of their radar signatures. CAD model disagreements such as missing, added, or dimensionally inaccurate components, as well as measurement imperfections are analyzed. Target traceback information of the features identifies flawed areas of the model. The projection value quantifies the degree of disagreement. The feature extraction methodology is next modified for measured radar signatures which lack readily available scattering center and bounce information. First, many ground plane synthetic aperture radar images of overlapping, limited apertures in azimuth are formed from the measurement data. Then, two-dimensional scattering centers of all images are estimated using a modified CLEAN algorithm. Feature extraction is lastly performed as with Xpatch data, though a reduction in grid dimensionality and orthogonality occurs. Finally, measured feature sets are exploited for sparse elevation 3D imaging and improved CAD model validation. The first application estimates the truth 3D scattering center of each feature using linear least squares to then visualize a composite 3D image of the target. The second application projects both synthetic and measured feature radar signatures to mitigate errors from the intersection of features in the combined measurement signature.
Book Synopsis Target Model Generation from Multiple Synthetic Aperture Radar Images by : John Alfred Richards
Download or read book Target Model Generation from Multiple Synthetic Aperture Radar Images written by John Alfred Richards and published by . This book was released on 2001 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Ground Target Detection Methods in Fully Polarimetric Wide Angle Synthetic Aperture Radar Images by : Wayne B. McLaggan (FLT LT, Royal Australian Air Force.)
Download or read book Investigation of Ground Target Detection Methods in Fully Polarimetric Wide Angle Synthetic Aperture Radar Images written by Wayne B. McLaggan (FLT LT, Royal Australian Air Force.) and published by . This book was released on 1995 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optical Engineering written by and published by . This book was released on 2003 with total page 932 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publishes papers reporting on research and development in optical science and engineering and the practical applications of known optical science, engineering, and technology.
Book Synopsis Comparison of Different Feature-based and Intensity Signature-based Matching Algorithms for Automatic Target Recognition in Synthetic Aperture Radar by : Matt Martino
Download or read book Comparison of Different Feature-based and Intensity Signature-based Matching Algorithms for Automatic Target Recognition in Synthetic Aperture Radar written by Matt Martino and published by . This book was released on 2007 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: The object of Automatic Target Recognition (ATR) for Synthetic Aperture Radar (SAR) involves comparing extracted target signatures (features) to the statistics of features of all potential targets. Central to this processing paradigm is the search algorithm, which helps assess and optimize the favorable effects of multiple image features on recognition accuracy. The ATR algorithms discussed fall into two categories: feature and intensity-based. The feature-based algorithms create binary images of the edges, corners, gradient and ceiling peaks of the tank. The intensity-based signatures are created using algorithms that extract the tank image, block out the background, normalize the MSTAR (Moving and Stationary Target Acquisition and Recognition) data within the tank region and can be exploited to minimize false classifications. Several scenarios will be explored to determine the effectiveness of using the CLEAN method on the ceiling peak feature extraction method and the validity of using the intensity signatures of the MSTAR tank image.
Book Synopsis Automatic Target Recognition for Synthetic Aperture Radar Imagery by : Jesse Feder Kantor
Download or read book Automatic Target Recognition for Synthetic Aperture Radar Imagery written by Jesse Feder Kantor and published by . This book was released on 2004 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of three methods to identify potential military targets using automatic target recognition with image data of tanks generated from Synthetic Aperture Radar. The methods analyzed were based on three algorithms: Fast Correlation, Grayscale Layer, and Topographic Primal Sketch.
Book Synopsis Automatic Target Recognition of Synthetic Aperture Radar Images Using Elliptical Fourier Desciptors by : Louis Patrick Nicoli
Download or read book Automatic Target Recognition of Synthetic Aperture Radar Images Using Elliptical Fourier Desciptors written by Louis Patrick Nicoli and published by . This book was released on 2007 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 1048 pages. Available in PDF, EPUB and Kindle. Book excerpt:
