Millimeter Wave Radio Over Fiber Links Based On Mode Locked Laser Diodes
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Millimeter Wave Radio Over Fiber Links Based On Mode Locked Laser Diodes
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Author : Brendel, Friederike
language : en
Publisher: KIT Scientific Publishing
Release Date : 2014-05-14
Millimeter Wave Radio Over Fiber Links Based On Mode Locked Laser Diodes written by Brendel, Friederike and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-05-14 with Technology & Engineering categories.
Radio communications in the range of 60 GHz enable multi-Gigabit/s network access in indoor environments. Due to the propagation characteristics of such signals only very short range radio transmission is feasible. In order to distribute these signals across large distances, analog transmission over optical fiber is considered. In this work, mode-locked laser diodes serve as optoelectronic oscillators for the generation of such signals. Their system-relevant properties are studied in detail.
Rf Probe Induced On Wafer Measurement Errors In The Millimeter Wave Frequency Range
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Author : Mueller, Daniel
language : en
Publisher: KIT Scientific Publishing
Release Date : 2018-11-22
Rf Probe Induced On Wafer Measurement Errors In The Millimeter Wave Frequency Range written by Mueller, Daniel and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-11-22 with Measurement categories.
Measurement at millimeter-wave frequencies are prone to parasitic effects which distort the overall results. Especially the use of RF probes introduces unknown distortions, even after the measurement setup is calibrated. This works investigates these distortions based on electromagnetic field simulations of integrated circuits in conjunction with models of the used RF probes. This allows to comprehend the observed distortions and successfully resolve the root of the distortions.
Distributed Transformers For Broadband Monolithic Millimeter Wave Integrated Power Amplifiers
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Author : Pahl, Kai-Philipp Walter
language : en
Publisher: KIT Scientific Publishing
Release Date : 2015-09-18
Distributed Transformers For Broadband Monolithic Millimeter Wave Integrated Power Amplifiers written by Pahl, Kai-Philipp Walter and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-09-18 with Broadband amplifiers categories.
This work presents methods and techniques to optimize and implement distributed magnetic transformers for their application in matching networks of Monolithic Millimeter-wave Integrated Circuits (MMICs). It describes strategies for the efficiency and bandwidth optimization of the transformers and demonstrates their potential based on an optimized transformer geometry as well as two MMIC power amplifiers.
Concepts For Short Range Millimeter Wave Miniaturized Radar Systems With Built In Self Test
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Author : Girma, Mekdes
language : en
Publisher: KIT Scientific Publishing
Release Date : 2019-11-21
Concepts For Short Range Millimeter Wave Miniaturized Radar Systems With Built In Self Test written by Girma, Mekdes and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-11-21 with Technology & Engineering categories.
Modeling Backscattering Behavior Of Vulnerable Road Users Based On High Resolution Radar Measurements
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Author : Abadpour, Sevda
language : en
Publisher: KIT Scientific Publishing
Release Date : 2023-11-20
Modeling Backscattering Behavior Of Vulnerable Road Users Based On High Resolution Radar Measurements written by Abadpour, Sevda and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-11-20 with categories.
During the evolvement of autonomous driving technology, obtaining reliable 3-D environmental information is an indispensable task in approaching safe driving. The operational behavior of automotive radars can be precisely evaluated in a virtual test environment by modeling its surrounding, specifically vulnerable road users (VRUs). Such a realistic model can be generated based on the radar cross section (RCS) and Doppler signatures of a VRU. Therefore, this work proposes a high-resolution RCS measurement technique to determine the relevant scattering points of different VRUs.
Realization Limits Of Impulse Radio Uwb Indoor Localization Systems
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Author : Zwirello, Lukasz
language : en
Publisher: KIT Scientific Publishing
Release Date : 2014-05-06
Realization Limits Of Impulse Radio Uwb Indoor Localization Systems written by Zwirello, Lukasz and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-05-06 with Technology & Engineering categories.
In this work, the realization limits of an impulse-based Ultra-Wideband (UWB) localization system for indoor applications have been thoroughly investigated and verified by measurements. The analysis spans from the position calculation algorithms, through hardware realization and modeling, up to the localization experiments conducted in realistic scenarios. The main focus was put on identification and characterization of limiting factors as well as developing methods to overcome them.
Multi User Gesture Recognition With Radar Technology
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Author : Ninos, Alexandros
language : en
Publisher: KIT Scientific Publishing
Release Date : 2022-10-27
Multi User Gesture Recognition With Radar Technology written by Ninos, Alexandros and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-10-27 with Technology & Engineering categories.
The aim of this work is the development of a Radar system for consumer applications. It is capable of tracking multiple people in a room and offers a touchless human-machine interface for purposes that range from entertainment to hygiene.
Polarimetric Radar For Automotive Applications
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Author : Visentin, Tristan
language : en
Publisher: KIT Scientific Publishing
Release Date : 2019-04-10
Polarimetric Radar For Automotive Applications written by Visentin, Tristan and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-04-10 with Technology (General) categories.
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.
Intelligent Reflecting Surfaces In Wireless Communication Systems
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Author : Li, Yueheng
language : en
Publisher: KIT Scientific Publishing
Release Date : 2024-02-23
Intelligent Reflecting Surfaces In Wireless Communication Systems written by Li, Yueheng and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-02-23 with categories.
Accompanied with the development of the wireless communication technologies, the high data traffic is more necessary for civil and industrial applications than ever The concept of an intelligent reflective surface (IRS) has attracted considerable attention recently as a low-cost solution. As the main contribution, the dissertation creates new state-of-the-art and formulates a solid milestone for the IRS research field.
High Precision Automotive Radar Target Simulation
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Author : Diewald, Axel
language : en
Publisher: KIT Scientific Publishing
Release Date : 2023-08-15
High Precision Automotive Radar Target Simulation written by Diewald, Axel and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-08-15 with categories.
Radar target simulators (RTSs) deceive a radar under test (RuT) by creating an artificial environment consisting of virtual radar targets. In this work, new techniques are presented that overcome the rasterization deficiency of current RTS systems and enable the generation of virtual targets at arbitrary high-precision positions. This allows for continuous movement of the targets and thus a more credible simulation environment.