Highly Resolved Synthetic Aperture Radar with Beam Steering
Highly Resolved Synthetic Aperture Radar with Beam Steering

Author: Ossowska, Alicja

Publisher: KIT Scientific Publishing

Published: 2015-02-12

Total Pages: 256

ISBN-13: 3731503158

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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.

Highly Resolved Synthetic Aperture Radar With Beam Steering
Highly Resolved Synthetic Aperture Radar With Beam Steering

Author: Alicja Ossowska

Publisher:

Published: 2020-10-09

Total Pages: 252

ISBN-13: 9781013283956

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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. This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.

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

Author: Abadpour, Sevda

Publisher: KIT Scientific Publishing

Published: 2023-11-20

Total Pages: 194

ISBN-13: 3731513161

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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.

High-Precision Automotive Radar Target Simulation
High-Precision Automotive Radar Target Simulation

Author: Diewald, Axel

Publisher: KIT Scientific Publishing

Published: 2023-08-15

Total Pages: 190

ISBN-13: 3731512963

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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.

Polarimetric Radar for Automotive Applications
Polarimetric Radar for Automotive Applications

Author: Visentin, Tristan

Publisher: KIT Scientific Publishing

Published: 2019-04-10

Total Pages: 188

ISBN-13: 3731508885

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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.

Multi-User Gesture Recognition with Radar Technology
Multi-User Gesture Recognition with Radar Technology

Author: Ninos, Alexandros

Publisher: KIT Scientific Publishing

Published: 2022-10-27

Total Pages: 164

ISBN-13: 3731512254

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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.

MIMO OFDM Radar-Communication System with Mutual Interference Cancellation
MIMO OFDM Radar-Communication System with Mutual Interference Cancellation

Author: Sit, Yoke Leen

Publisher: KIT Scientific Publishing

Published: 2017-04-10

Total Pages: 262

ISBN-13: 3731505991

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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.

RF Probe-Induced On-Wafer Measurement Errors in the Millimeter-Wave Frequency Range
RF Probe-Induced On-Wafer Measurement Errors in the Millimeter-Wave Frequency Range

Author: Mueller, Daniel

Publisher: KIT Scientific Publishing

Published: 2018-11-22

Total Pages: 212

ISBN-13: 3731508222

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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.