Publication detail

Experimental evaluation of the influence of fast movement on virtual antenna arrays

SCHUTZENHOFER, D. ZÖCHMANN, E. LERCH, M. PRATSCHNER, S. GROLL, H. CABAN, S. RUPP, M.

Original Title

Experimental evaluation of the influence of fast movement on virtual antenna arrays

Type

conference paper

Language

English

Original Abstract

Virtual antenna arrays are employed on the roof of high-speed trains to sound the channel between a train and a fixed base station. Because high-speed trains are moving fast during such a measurement, high Doppler shifts are experienced. In this paper, we evaluate the influence of fast movement on measurements with virtual antenna arrays if algorithms for static scenarios are employed. We have built a laboratory setup to test common algorithms such as the Bartlett beamformer. Our laboratory setup allows to compare the performance of algorithms at standstill to the performance of the same algorithms at different velocities. We show that the estimated power angular spectrum changes up to 20 dB in magnitude if we apply the same algorithm as in the static scenario. The Doppler effect also causes an angular shift. We experience that the difference in circular variance is 7.4 %. The measurement results show that DOA estimation algorithms that do not consider Doppler are not consistent anymore at fast movement

Keywords

Angular characterisation; Doppler; Fast movement; Virtual antenna array

Authors

SCHUTZENHOFER, D.; ZÖCHMANN, E.; LERCH, M.; PRATSCHNER, S.; GROLL, H.; CABAN, S.; RUPP, M.

Released

1. 7. 2019

Publisher

VDE Verlag GmbH

Location

Vienna

ISBN

9783800749409

Book

WSA 2019 - 23rd International ITG Workshop on Smart Antennas

Pages from

105

Pages to

109

Pages count

5

URL

https://ieeexplore.ieee.org/document/8727202

BibTex

@inproceedings{BUT177381,
  author="Daniel {Schutzenhofer} and Erich {Zöchmann} and Martin {Lerch} and Stefan {Pratschner} and Herbert {Groll} and Sebastian {Caban} and Markus {Rupp}",
  title="Experimental evaluation of the influence of fast movement on virtual antenna arrays",
  booktitle="WSA 2019 - 23rd International ITG Workshop on Smart Antennas",
  year="2019",
  pages="105--109",
  publisher="VDE Verlag GmbH",
  address="Vienna",
  isbn="9783800749409",
  url="https://ieeexplore.ieee.org/document/8727202"
}