Angular-dependent Three-dimensional Imaging Techniques in Multi-pass Synthetic Aperture Radar PDF Download
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Author: Jan Rainer Jamora
Publisher:
ISBN:
Category :
Languages : en
Pages : 85
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Book Description
Humans perceive the world in three dimensions, but many sensing capabilities only display two-dimensional information to users by way of images. In this work we develop two novel reconstruction techniques utilizing synthetic aperture radar (SAR) data in three dimensions given sparse amounts of available data. We additionally leverage a hybrid joint-sparsity and sparsity approach to remove a-priori influences on the environment and instead explore general imaging properties in our reconstructions. We evaluate the required sampling rates for our techniques and a thorough analysis of the accuracy of our methods. The results presented in this thesis suggest a solution to sparse three-dimensional object reconstruction that effectively uses a substantially less amount of phase history data (PHD) while still extracting critical features off an object of interest.
Author: Jan Rainer Jamora
Publisher:
ISBN:
Category :
Languages : en
Pages : 85
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Book Description
Humans perceive the world in three dimensions, but many sensing capabilities only display two-dimensional information to users by way of images. In this work we develop two novel reconstruction techniques utilizing synthetic aperture radar (SAR) data in three dimensions given sparse amounts of available data. We additionally leverage a hybrid joint-sparsity and sparsity approach to remove a-priori influences on the environment and instead explore general imaging properties in our reconstructions. We evaluate the required sampling rates for our techniques and a thorough analysis of the accuracy of our methods. The results presented in this thesis suggest a solution to sparse three-dimensional object reconstruction that effectively uses a substantially less amount of phase history data (PHD) while still extracting critical features off an object of interest.
Author: Didier Massonnet
Publisher: CRC Press
ISBN: 1439808139
Category : Science
Languages : en
Pages : 298
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Book Description
Describing a field that has been transformed by the recent availability of data from a new generation of space and airborne systems, the authors offer a synthetic geometrical approach to the description of synthetic aperture radar, one that addresses physicists, radar specialists, as well as experts in image processing.
Author: Shu Xiao
Publisher:
ISBN:
Category :
Languages : en
Pages : 86
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Book Description
Author: Jack D. Pullis
Publisher:
ISBN:
Category : Synthetic aperture radar
Languages : en
Pages : 164
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Book Description
Author: Kulasegaram Ravichandran
Publisher:
ISBN:
Category : Remote sensing
Languages : en
Pages : 274
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Book Description
Author: Jack D. Pullis
Publisher:
ISBN:
Category : Synthetic aperture radar
Languages : en
Pages : 0
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Book Description
Author: Bassem Rasheed Mahafza
Publisher:
ISBN:
Category : Synthetic aperture radar
Languages : en
Pages : 320
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Book Description
Author:
Publisher:
ISBN:
Category : Synthetic aperture radar
Languages : en
Pages : 612
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Book Description
Author: Greg Barrie
Publisher: Defence R&D Canada - Ottawa
ISBN:
Category : Imaging systems
Languages : en
Pages : 22
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Book Description
Author: Charles N. Adams
Publisher:
ISBN: 9781423501688
Category :
Languages : en
Pages : 150
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Book Description
Inverse Synthetic Aperture Radar (ISAR) provides full-range detection and classification of sea-based and air-based targets through two-dimensional range-Doppler imaging. The Naval Postgraduate School (NPS) has developed a custom integrated circuit that can simulate false ISAR images in order to fool enemy ISAR platforms. To validate specific hardware choices within this design, this thesis explores the effect on image quality of an overflow occurring within the final 16-bit summation adder of this circuit, Three solutions to the problem of overflows are presented and analyzed. The logical extension of ISAR development, that of three-dimensional target imaging, is next presented through the discussion of 3D monopulse radar, 3D interferometer ISAR, and a 3D, three- receiver ISAR. The relative strengths of each approach are compared, along with both MATLAB and Extensible 3D (X3D) Graphics software models created for one specific 3D ISAR implementation. Through the superposition of 2D ISAR images it is shown how 3D ISAR images may be created. Moreover, emphasis is placed on using this knowledge to both enhance current 2D ISAR techniques and to modify the false-target chip design to handle 3D ISAR return signals. The thesis concludes with a study of Non-Uniform Rational 13-Splines, through which the X3D software model was created.
