77 GHz lens-based multistatic MIMO radar with colocated antennas for automotive applications

Abstract

With the fast development of highly integrated 77 GHz SiGe-MMICs, cost effective and reliable radar systems are feasible to significantly increase driving safety in all vehicle classes. New features have to be implemented in these sensors to fulfill the ascending requirements for future systems. Important demands will be the detection and separation of multiple targets in a range cell and the exact measurement of angles in azimuth and elevation. In this paper we present a new lens based 77 GHz MIMO radar system with SiGe MMICs. The center of attention in our investigations is the comparison between conventional lens based radar configurations and lens based MIMO radar configurations.

Huygens Metasurface Lens for W-Band Switched Beam Antenna Applications

“…E. Olk is also affiliated with IEE S.A., Luxembourg. e-mail of corresponding author A. E. Olk: andreas.olk@iee.lu or received from different angles [17]- [21]. Several related configurations have been proposed in the literature, including steerable antennas based on -near-zero metamaterials [22], perforated dielectrics [23] and bent flexible metagratings [24].…”

8 channel MIMO long range radar concept for angular estimation in multi target scenarios

“…In this section the specific signal model for the sensor is discussed with reference to [3]. Consider a given antenna array with N = 8 antennas.…”

“…This paper deals with the combination of the MIMO approach with a dielectric lens. The initial idea with the signal model was shown in [3] and the first system demonstrator concept based on a four channel system was shown in [4] and [5]. In this contribution, the verification and measurements of the system which was proposed in [3] are presented with focus on angular resolution and real world scenarios.…”

Future trends and directions in radar concerning the application for autonomous driving

“…On the other hand, a lot progress has been done in the field of MIMO and digital beamforming approaches for automotive radar. MIMO for lens based systems, so radars with high antenna gain or long range systems in other words are suggested in [10]. The potential of automotive MIMO systems to reduce ambiguousness and to increase angular resolution is demonstrated.…”