Array design for automotive digital beamforming radar system

This paper introduces a radar system for three-dimensional (3D) object detection and imaging. The presented 3D measurement method combines the frequency-modulated continuous wave (FMCW) approach for range measurements with a multiple-input multiple-output (MIMO) technique for digital beamforming in two dimensions. With an orthogonal arrangement of the antenna arrays for transmit and receive, the angular information is obtained in azimuth and elevation without mechanical beamsteering. The proposed principle allows performing 3D imaging by means of the acquired range, azimuth, and elevation information with a minimum of required hardware. Starting from the realization of the 3D radar imaging concept, the hardware architecture and the developed prototype are discussed in detail. Furthermore, the object detection capability of the 3D imaging radar system is demonstrated by measurements. The results show that the introduced 3D measurement concept in its realization is well suited for numerous applications.

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“…The unambiguous measurement range in azimuth can be defined according to [5] c unamb = 2 arcsin l 2d xn .…”

Section: B) Signal Processingmentioning

confidence: 99%

24GHz Digital beamforming radar with T-shaped antenna array for three-dimensional object detection

Harter

Schipper

Zwirełło

et al. 2012

Int. J. Microw. Wireless Technol.

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“…For digital beamforming in one dimension, the transmitter and receiver antennas are located uniformly or non-uniformly in one line, allowing to determine the angle in azimuth or elevation [4]. In the case of the 3D imaging approach, proposed in this paper, the transmitter and receiver antenna arrays are arranged orthogonally to each other, as shown in Fig.…”

Section: D Imaging Principlementioning

confidence: 99%

Realization of an innovative 3D imaging digital beamforming radar system

Harter

Chaudhury

Ziroff

et al. 2011

Proceedings of 2011 IEEE CIE International Conference on Radar

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An innovative 24 GHz digital beamforming radar system for three-dimensional imaging is addressed in this paper. The presented FMCW radar is characterized by an orthogonal arrangement of a transmitter and receiver antenna array in order to perform digital beamforming in two dimensions. By temporal multiplexing of the transmitter channels and parallel-operated receivers, each propagation path from the mth transmit antenna to the object to the nth receive antenna is made available to the signal processing. The three-dimensional imaging concept and the realized digital beamforming radar as well as signal processing aspects concerning sensor calibration are described in this paper.___________________________________ 978-1-4244-8443-0/11/$26.00 ©2011 IEEE

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“…This metric is used to find a set of observation-to-track pairs that satisfy the following closeness criterion (10), which is based on the covariances of both predictions and measurements:…”

Section: Gating and Observation-to-track Associationmentioning

confidence: 99%

A Short-Range Ship Navigation System Based on Ladar Imaging and Target Tracking for Improved Safety and Efficiency

Ruiz

Granja

2009

IEEE Trans. Intell. Transport. Syst.

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A new maritime navigation system based on a laser rangefinder scanner for obstacle avoidance and precise maneuvering operations is described in this paper. The main novelty of this work is the adaptation and implementation of known technology for laser range finding and algorithms for target tracking into a system that operates in real time and has been tested in different natural sea and inland navigation scenarios. The principal components of this system, namely, 1) the laser range finder, 2) the scanning unit, and 3) the data processing and displaying unit, are described in detail. Ladar images are dense horizontally and sparse vertically as a compromise between capturing relevant features and quick frame formation. Images are processed for range outlier removal, and significant observable patterns are extracted. This multiple-target tracking problem is tackled using robust Kalman filtering techniques for continuous tracking of each detected observation. We minimize unreliable track initializations and preserve tracks from deletion during temporal misobservations. The evaluation in open-sea and inland waterways gave good results, making the system valid for precise maneuvering, fluent navigation, and accident mitigation. Objects of interest, from boats to ships, are detected and robustly tracked; pier and lock chamber sketches are reliable; bridge height estimation is precise; and narrow waterways (river banks and bridge columns) are correctly detected. The prototype developed can be considered to be a very valuable complementary device to traditional radar-based techniques that are not totally valid for accurate short-range exploration, improving efficiency and safety in ship operations.

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Array design for automotive digital beamforming radar system

Cited by 17 publications

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24GHz Digital beamforming radar with T-shaped antenna array for three-dimensional object detection

24GHz Digital beamforming radar with T-shaped antenna array for three-dimensional object detection

Realization of an innovative 3D imaging digital beamforming radar system

A Short-Range Ship Navigation System Based on Ladar Imaging and Target Tracking for Improved Safety and Efficiency

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