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

Author : Brendel, Friederike
Publisher : KIT Scientific Publishing
Page : 324 pages
File Size : 49,6 Mb
Release : 2014-05-14
Category : Technology (General)
ISBN : 9783866449862

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Millimeter-Wave Radio-over-Fiber Links based on Mode-Locked Laser Diodes by Brendel, Friederike Pdf

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.

Modeling Backscattering Behavior of Vulnerable Road Users Based on High-Resolution Radar Measurements

Author : Abadpour, Sevda
Publisher : KIT Scientific Publishing
Page : 194 pages
File Size : 53,8 Mb
Release : 2023-11-20
Category : Electronic
ISBN : 9783731513162

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Modeling Backscattering Behavior of Vulnerable Road Users Based on High-Resolution Radar Measurements by Abadpour, Sevda Pdf

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.

Multi-User Gesture Recognition with Radar Technology

Author : Ninos, Alexandros
Publisher : KIT Scientific Publishing
Page : 164 pages
File Size : 48,6 Mb
Release : 2022-10-27
Category : Technology & Engineering
ISBN : 9783731512257

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Multi-User Gesture Recognition with Radar Technology by Ninos, Alexandros Pdf

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.

High-Precision Automotive Radar Target Simulation

Author : Diewald, Axel
Publisher : KIT Scientific Publishing
Page : 190 pages
File Size : 47,6 Mb
Release : 2023-08-15
Category : Electronic
ISBN : 9783731512967

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High-Precision Automotive Radar Target Simulation by Diewald, Axel Pdf

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.

Intelligent Reflecting Surfaces in Wireless Communication Systems

Author : Li, Yueheng
Publisher : KIT Scientific Publishing
Page : 246 pages
File Size : 50,5 Mb
Release : 2024-02-23
Category : Electronic
ISBN : 9783731513346

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Intelligent Reflecting Surfaces in Wireless Communication Systems by Li, Yueheng Pdf

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.

Polarimetric Radar for Automotive Applications

Author : Visentin, Tristan
Publisher : KIT Scientific Publishing
Page : 190 pages
File Size : 54,5 Mb
Release : 2019-04-10
Category : Electronic
ISBN : 9783731508885

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Polarimetric Radar for Automotive Applications by Visentin, Tristan Pdf

Body Matched Antennas for Microwave Medical Applications

Author : Li, Xuyang
Publisher : KIT Scientific Publishing
Page : 230 pages
File Size : 53,9 Mb
Release : 2014-01-23
Category : Technology (General)
ISBN : 9783731501473

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Body Matched Antennas for Microwave Medical Applications by Li, Xuyang Pdf

In this work, new concepts of body-matched antennas for microwave medical applications were developed, where the antennas are placed directly on or in the human body. Two types of antennas were designed - on-body matched antennas for diagnosis and implantable antennas for data telemetry with the main focus of miniaturization yet maintained a high radiation performance. The applicability of the antennas was verified using a medical imaging system for the detection of hemorrhagic stroke.