Transmitting phase-aligned signals for array steering with USRPs X310

  • Clément Campo French-German research Institute of Saint-Louis (ISL), 5 rue du général Cassagnou, Saint-Louis 68300, France
  • Loic Bernard French-German research Institute of Saint-Louis (ISL), 5 rue du général Cassagnou, Saint-Louis 68300, France
  • Hervé Boeglen XLIM laboratory, university of Poitiers, F-86000 Poitiers, France
  • Sébastien Hengy French-German research Institute of Saint-Louis (ISL), 5 rue du général Cassagnou, Saint-Louis 68300, France
  • Jean-Marie Paillot XLIM laboratory, university of Poitiers, F-86000 Poitiers, France

Abstract

More affordable commercial systems and high reconfigurability have made Software-Defined Radios (SDR) a serious candidate for many complex radio systems. This work is part of a study that investigates the usability of the commercial Universal Software Radio Peripheral (USRP) for antenna array steering applications, which require all signals to be phase synchronized. The following details the specific problems met when the steered array transmits signals, draws the comparison with the previous work that focused
on steering a receiving array, and presents the proposed solution to automate phase synchronization between the different transmitting channels. The radiation patterns of two four-element
Uniform Linear Arrays (ULA) are measured after calibration as a result.

Published
2021-07-03
How to Cite
CAMPO, Clément et al. Transmitting phase-aligned signals for array steering with USRPs X310. Proceedings of the GNU Radio Conference, [S.l.], v. 3, n. 1, july 2021. Available at: <https://pubs.gnuradio.org/index.php/grcon/article/view/105>. Date accessed: 08 dec. 2021.