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Integrierte, planare Leckwellenantennen für 3D-Millimeterwellen-Radarsysteme basierend auf dem holografischen Prinzip

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Book Series: Karlsruher Forschungsberichte aus dem Institut für Hochfrequenztechnik und Elektronik ISSN: 18684696 ISBN: 9783731502340 Year: Volume: 74 Pages: XIV, 198 p. DOI: 10.5445/KSP/1000041807 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:02:00
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In this thesis methods are presented to optimize the radiation characteristic of holographic antennas for the usage with frequency-modulated radar modules (FMCW principle). This combination allows the simultaneous measuring of distance and angular position to targets within a scenario, due to the frequency-scanning property of this antenna type. This work focuses on the design of the integrated, holographic antennas and their optimization in terms of important system parameters.

Electromagnetic Wave Scattering by Aerial and Ground Radar Objects

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ISBN: 9781482282610 Year: Pages: 334 DOI: 10.1201/9781315214511 Language: English
Publisher: Taylor & Francis
Subject: Agriculture (General)
Added to DOAB on : 2020-09-23 00:07:02
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Electromagnetic Wave Scattering by Aerial and Ground Radar Objects presents the theory, original calculation methods, and computational results of the scattering characteristics of different aerial and ground radar objects. This must-have book provides essential background for computing electromagnetic wave scattering in the presence of different kinds of irregularities, as well as Summarizes fundamental electromagnetic statements such as the Lorentz reciprocity theorem and the image principle Contains integral field representations enabling the study of scattering from various layered structures Describes scattering computation techniques for objects with surface fractures and radar-absorbent coatings Covers elimination of "terminator discontinuities" appearing in the method of physical optics in general bistatic cases Includes radar cross-section (RCS) statistics and high-range resolution profiles of assorted aircrafts, cruise missiles, and tanks Complete with radar backscattering diagrams, echo signal amplitude probability distributions, and other valuable reference material, Electromagnetic Wave Scattering by Aerial and Ground Radar Objects is ideal for scientists, engineers, and researchers of electromagnetic wave scattering, computational electrodynamics, and radar detection and recognition algorithms.

 Ocean Remote Sensing with Synthetic Aperture Radar

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ISBN: 9783038427209 9783038427193 Year: Pages: 360 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Geography
Added to DOAB on : 2018-02-08 13:19:39
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The ocean covers approximately 71% of the Earth’s surface, 90% of the biosphere and contains 97% of Earth’s water. The Synthetic Aperture Radar (SAR) can image the ocean surface in all weather conditions and day or night. SAR remote sensing on ocean and coastal monitoring has become a research hotspot in geoscience and remote sensing. This book—Progress in SAR Oceanography—provides an update of the current state of the science on ocean remote sensing with SAR. Overall, the book presents a variety of marine applications, such as, oceanic surface and internal waves, wind, bathymetry, oil spill, coastline and intertidal zone classification, ship and other man-made objects’ detection, as well as remotely sensed data assimilation. The book is aimed at a wide audience, ranging from graduate students, university teachers and working scientists to policy makers and managers. Efforts have been made to highlight general principles as well as the state-of-the-art technologies in the field of SAR Oceanography.

Hochgenaue radarbasierte Abstandsmessung mit geführter Wellenausbreitung

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Book Series: Karlsruher Forschungsberichte aus dem Institut für Hochfrequenztechnik und Elektronik ISSN: 18684696 ISBN: 9783731504337 Year: Volume: 81 Pages: XVIII, 220 p. DOI: 10.5445/KSP/1000049623 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:01:57
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In this work, a new measurement approach for a radar-based high accuracy distance measurement with guided wave propagation is presented. The reached distance accuracy is in the single-digit range. The main influencing factors on the achievable accuracy are characterized with the developed methods and techniques, to allow a systematic design and optimization of the system in advance.

Strategies for Time Domain Characterization of UWB Components and Systems

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Book Series: Karlsruher Forschungsberichte aus dem Institut für Hochfrequenztechnik und Elektronik ISSN: 18684696 ISBN: 9783866444171 Year: Volume: 57 Pages: X, 167 p. DOI: 10.5445/KSP/1000012414 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:01:57
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In this work new methods and criteria for the analysis of Ultra Wideband (UWB) components and systems are introduced. This permit to have a deeper insight into the component characteristics like signal distortion, ringing and dispersion, introduced by the non-ideal behavior of the UWB components over the wide frequency band. The developed analyses are the basis for correction and optimization strategies for the features of the UWB components and systems, compensating for their non-idealities.

FMCW-Radarsignalverarbeitung zur Entfernungsmessung mit hoher Genauigkeit

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Book Series: Karlsruher Forschungsberichte aus dem Institut für Hochfrequenztechnik und Elektronik ISSN: 18684696 ISBN: 9783731506072 Year: Volume: 83 Pages: XV, 140 p. DOI: 10.5445/KSP/1000062132 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:02:00
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Distance measurements with micrometer accuracies are essential for the control of industrial machines. This work investigates the maximum possible accuracy of FMCW radar systems, which use an additional phase evaluation. The feasibility of the developed techniques is shown in different industrial applications. An accuracy better than 1 µm is demonstrated in measurements.

Dreidimensional bildgebendes Radarsystem mit digitaler Strahlformung für industrielle Anwendungen

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Book Series: Karlsruher Forschungsberichte aus dem Institut für Hochfrequenztechnik und Elektronik ISSN: 18684696 ISBN: 9783731502494 Year: Volume: 75 Pages: XVI, 203 p. DOI: 10.5445/KSP/1000042368 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:01:59
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The contactless detection of the presence and position of objects is required in many areas of the industry. Therefore, a three-dimensional measuring radar sensor, including corresponding methods for signal processing, is designed and realized. By exemplary measurement scenarios, the capability of the radar system for positioning and imaging of the environment in three dimensions is successfully demonstrated, which opens up new areas of application.

Application-Specific Broadband Antennas for Microwave Medical Imaging

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Book Series: Karlsruher Forschungsberichte aus dem Institut für Hochfrequenztechnik und Elektronik ISSN: 18684696 ISBN: 9783731506645 Year: Volume: 85 Pages: X, 147 p. DOI: 10.5445/KSP/1000069288 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:01:57
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The goal of this work is the introduction of efficient antenna structures on the basis of the requirement of different microwave imaging methods; i.e. quantitative and qualitative microwave imaging techniques. Several criteria are proposed for the evaluation of single element antenna structures for application in microwave imaging systems. The performance of the proposed antennas are evaluated in simulation and measurement scenarios.

Fusion of Data from Heterogeneous Sensors with Distributed Fields of View and Situation Evaluation for Advanced Driver Assistance Systems

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Book Series: Forschungsberichte aus der Industriellen Informationstechnik / Institut für Industrielle Informationstechnik (IIIT), Karlsruher Institut für Technologie ISSN: 21906629 ISBN: 9783731500735 Year: Volume: 8 Pages: VIII, 238 p. DOI: 10.5445/KSP/1000035932 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:01:58
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In order to develop a driver assistance system for pedestrian protection, pedestrians in the environment of a truck are detected by radars and a camera and are tracked across distributed fields of view using a Joint Integrated Probabilistic Data Association filter. A robust approach for prediction of the system vehicles trajectory is presented. It serves the computation of a probabilistic collision risk based on reachable sets where different sources of uncertainty are taken into account.

Motion Compensation for Near-Range Synthetic Aperture Radar Applications

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Book Series: Karlsruher Forschungsberichte aus dem Institut für Hochfrequenztechnik und Elektronik ISSN: 18684696 ISBN: 9783866449060 Year: Volume: 67 Pages: XII, 149 p. DOI: 10.5445/KSP/1000029383 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
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The work focuses on the analysis of influences of motion errors on near-range SAR applications and design of specific motion measuring and compensation algorithms. First, a novel metric to determine the optimum antenna beamwidth is proposed. Then, a comprehensive investigation of influences of motion errors on the SAR image is provided. On this ground, new algorithms for motion measuring and compensation using low cost inertial measurement units (IMU) are developed and successfully demonstrated.

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