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Polarimetric Radar for Automotive Applications

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Book Series: Karlsruher Forschungsberichte aus dem Institut für Hochfrequenztechnik und Elektronik ISSN: 18684696 ISBN: 9783731508885 Year: Volume: 90 Pages: IX, 159 p. DOI: 10.5445/KSP/1000090003 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:02:02
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Current automotive radar sensors prove to be a weather robust and low-cost solution, but are suffering from low resolution and are not capable of classifying detected targets. However, for future applications like autonomous driving, such features are becoming ever increasingly important. On the basis of successful state-of-the-art applications, this work presents the first in-depth analysis and ground-breaking, novel results of polarimetric millimeter wave radars for automotive applications.

Highly Resolved Synthetic Aperture Radar with Beam Steering

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Book Series: Karlsruher Forschungsberichte aus dem Institut für Hochfrequenztechnik und Elektronik ISSN: 18684696 ISBN: 9783731503156 Year: Volume: 77 Pages: XXI, 213 p. DOI: 10.5445/KSP/1000044864 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:02:02
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The present work deals with a highly resolved radar with a synthetic aperture (synthetic aperture radar - SAR), which uses a beam steering to improve performance. The first part of this work deals with the influence of various effects occurring in the hardware of the High-Resolution Wide-Swath SAR (HRWS SAR) system. A special focus was set to single bit quantization in multi-channel receiver. The second part of this work describes SAR processors for Sliding Spotlight mode.

MIMO OFDM Radar-Communication System with Mutual Interference Cancellation

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Book Series: Karlsruher Forschungsberichte aus dem Institut für Hochfrequenztechnik und Elektronik ISSN: 18684696 ISBN: 9783731505990 Year: Volume: 82 Pages: XVI, 221 p. DOI: 10.5445/KSP/1000061697 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:02:02
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This work describes the OFDM-based MIMO Radar-Communication System, intended for operation in a multiple-user network, especially the automotive sector in the vehicle-to vehicle/infrastructure network. The OFDM signals however are weak towards frequency offsets causing subcarrier misalignment and corrupts the radar estimation and the demodulation of the communication signal. A simple yet effective interference cancellation algorithm is detailed here with real time measurement verification.

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.

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.

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)
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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.

Efficient Radar Forward Operator for Operational Data Assimilation within the COSMO-model

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Book Series: Wissenschaftliche Berichte des Instituts für Meteorologie und Klimaforschung des Karlsruher Instituts für Technologie ISSN: 01795619 ISBN: 9783731501282 Year: Volume: 60 Pages: XI, 235 p. DOI: 10.5445/KSP/1000036921 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Physics (General)
Added to DOAB on : 2019-07-30 20:02:01
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Doppler radars provide unique 3D information about precipitating clouds in high spatial and temporal resolutions. However, the observed quantities (reflectivity, Doppler velocity and polarization properties) are not directly comparable to the variables of numerical prediction models. In order to enable radar data assimilation, a comprehensive modular radar forward operator has been developed.

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