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Optimization of a MIMO radar antenna system for automotive applications
Beitrag zu einer Konferenz
(Universität Ulm, 2017-05-18)
Multiple-Input Multiple-Output (MIMO) radars can improve the angular resolution of automotive radar sensors. In MIMO radars, a critical design parameter is finding the optimal placement of the transmitting and receiving ...
Design and experimental characterization of a surface with low radar cross-section at millimeter-wave frequencies
Beitrag zu einer Konferenz
(Universität Ulm, 2017-01-19)
The investigation of low radar cross-section (RCS) structures is of great practical interest for the car integration of radar systems. This paper presents for the first time the study of a low-RCS surface at millimeter ...
A dielectric lens antenna fed by a flexible dielectric waveguide at 160 GHz
Beitrag zu einer Konferenz
(Universität Ulm, 2017-05-18)
Flexible antennas in radar applications enable the
user to go around obstacles or detect targets at hidden places.
In this paper, two elliptical lenses of different size made of
high density polyethylene and stacked on ...
Ghost target identification by analysis of the doppler distribution in automotive scenarios
Beitrag zu einer Konferenz
(Universität Ulm, 2017-08-15)
In an automotive environment the presence of reflecting surfaces cannot be avoided. The
electromagnetic wave returning from a target vehicle can get reflected on those surfaces causing a
non existing so-called ghost ...
Enhancement of doppler resolution for chirp-sequence modulated radars
Beitrag zu einer Konferenz
(Universität Ulm, 2017)
For automotive radar sensors the Doppler resolution is a key parameter, since it is used to
separate targets which are in the same radial distance. For future applications the Doppler
signature of targets can be ...
The performance of modal filtering in passive and active integrated antenna measurements at 160 GHz
Beitrag zu einer Konferenz
(Universität Ulm, 2017)
The results of integrated antenna measurements are often severely distorted by reflections from the measurement environment. In order to contact and feed passive integrated antennas wafer probes have to be used. Wafer ...
Template matching for radar-based orientation and position estimation in automotive scenarios
Beitrag zu einer Konferenz
(Universität Ulm, 2017-05-04)
Future high-resolution radars enable new functionalities in advanced driver assistance systems, such as estimation of contour, position, and orientation of vehicles on the road. However, straightforward approaches like ...
Interference of chirp sequence radars by OFDM radars at 77 GHz
Beitrag zu einer Konferenz
(Universität Ulm, 2017-05-04)
Radar sensors are common devices in daily traffic, especially for driver assistance and automotive safety systems. A high sensor density increases the probability of interferences, especially when the sensors occupy a large ...
Automotive radar interference mitigation using a sparse sampling approach
Beitrag zu einer Konferenz
(Universität Ulm, 2017)
The application of radar sensors for driver assistance systems and autonomous driving leads to an increasing probability of radar interferences. Those interferences degrade the detection capabilities and can cause sensor ...
Estimation and cancellation of interferences in automotive radar signals
Beitrag zu einer Konferenz
(Universität Ulm, 2017)
Radar sensors become typical components for automotive driver assistance
systems and autonomous driving. The widespread use of this sensor type leads to an
increasing risk of unwanted interferences. Those interferences ...