Measurement Uncertainty, Channel Simulation, and Disturbance Characterization of an Over-the-Air Multiprobe Setup for Cars at 5.9 GHz

Nilsson, Mikael; Hallbjörner, Paul; Arabäck, Niklas; Bergqvist, Björn; Abbas, Taimoor; Tufvesson, Fredrik

doi:10.1109/tie.2015.2475423

Cited by 19 publications

(12 citation statements)

References 22 publications

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“…The measurement setup is therefore smaller in size, of lighter weight and thus easier to tilt than conventional compact ranges [18]. Other alternative automotive OTA measurement techniques employing anechoic chambers propose the use of multiprobe antenna systems [31], but will not be considered in the present characterization study. The studied measurement setup is described in Section 2, the characterization method in Section 3, followed by the results and conclusions in Sections 4 and 5, respectively.…”

Section: Introductionmentioning

confidence: 99%

Characterization Method of an Automotive Random-Los Ota Measurement Setup

Razavi

Glazunov

Moghaddam

et al. 2018

PIER C

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Abstract-A novel characterization method of OTA test setups for wireless communication systems on vehicles in the random line-of-sight (Random-LOS) environment is proposed. The measurement setup assumes a compact range and a test zone where the antenna under test (AUT) on the vehicle would be located. An ideal receiver is assumed for the reference measurement, which allows to perform a system analysis through evaluating the Probability of Detection (PoD) as the system figure-of-merit. The proposed method is aimed as an aid for test equipment designers to design OTA compact ranges, compare their performances, and define an ideal numerical reference. The requirements for OTA measurement ranges are different from those for conventional anechoic compact ranges. A compact cylindrical reflector system with an antenna array line feed is characterized using the proposed method, from 1.6-2.7 GHz, for two orthogonal polarizations, various AUT heights and reflector tilting angles, with and without ground plane in a test zone which is 2 m wide in diameter.

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Section: Introductionmentioning

confidence: 99%

Characterization Method of an Automotive Random-Los Ota Measurement Setup

Razavi

Glazunov

Moghaddam

et al. 2018

PIER C

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“…Construction of the measurement system shown in Figure 2 in a radio anechoic chamber is generally tedious work. Moreover, if the DUT is too large, for example, antennas installed in a vehicle [29], the area required to arrange the probe antenna array around the DUT is particularly large and may exceed the size of a conventional radio anechoic chamber. Even in these cases, it is possible to measure antenna array radiation patterns if the distance required for measurements is available in one direction by emitting radio waves from that direction only while rotating the DUT.…”

Section: Two-stage Methodmentioning

confidence: 99%

“…In the RC system, a chamber with metallic walls that effectively reflect radio waves is used to generate a rich multipath propagation environment [22][23][24]. In FE systems, a number of virtual scattering probe antennas encircle DUTs to generate a fading environment [3][4][5][6][7][8][9][25][26][27][28][29]. FE systems can provide flexible control of propagation parameters and various propagation environments, but system construction is complex and costly.…”

Section: Brief Summary Of Mimo-ota Testing Systemsmentioning

confidence: 99%

MIMO Fading Emulator Development with FPGA and Its Application to Performance Evaluation of Mobile Radio Systems

Karasawa

Nakada

Guijiang

et al. 2017

International Journal of Antennas and Propagation

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We present four new developments for a multiple-input multiple-output (MIMO) over-the-air measurement system based on our previous studies. The first two developments relate to the channel model for multipath environment generation. One is a further simplification of the circuit configuration without performance degradation by reducing the number of delay generation units, which dominate the performance limit when implementing the circuit on a field-programmable gate array (FPGA). The other is to realize spatial correlation characteristics among the input ports on the transmission side, whereas the previously proposed channel model did not consider this correlation. The third development involves the details of implementing the MIMO fading emulator on an FPGA as a two-stage scheme. The fourth is the demonstration of application examples of the developed system.

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“…Ilmenau University of Technology has a test facility where they are looking at emulating realistic radio scenarios for cars [8]. The authors of [9] investigate the measurement uncertainty of a multi-probe setup for characterizing a MIMO antenna on a car.…”

Section: Introductionmentioning

confidence: 99%

Measured probabilities of detection for 1- and 2 bitstreams of 2-port car-roof antenna in RIMP and Random-LOS

Kildal¹,

Glazunov

Carlsson

et al. 2016

2016 10th European Conference on Antennas and Propagation (EuCAP)

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Abstract-Autonomous cars will in a near future drive around in cities and on highways. Antennas will then be needed to secure the wireless connection to these cars. To be able to test the antennas we have defined two edge environments: the Random Line-of-Sight (LOS) and the Rich Isotropic Multipath (RIMP). This paper shows a throughput performance comparison between measurements and simulations of a car-roof (shark-fin) antenna mounted on a ground plane in both of these environments. The comparison is done for both one and two bitstreams in a 2×2 MIMO system. The analysis is based on probability of detection (PoD) curves representing the throughput performance with digital threshold receivers.

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Measurement Uncertainty, Channel Simulation, and Disturbance Characterization of an Over-the-Air Multiprobe Setup for Cars at 5.9 GHz

Cited by 19 publications

References 22 publications

Characterization Method of an Automotive Random-Los Ota Measurement Setup

Characterization Method of an Automotive Random-Los Ota Measurement Setup

MIMO Fading Emulator Development with FPGA and Its Application to Performance Evaluation of Mobile Radio Systems

Measured probabilities of detection for 1- and 2 bitstreams of 2-port car-roof antenna in RIMP and Random-LOS

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