Picture of person typing on laptop with programming code visible on the laptop screen

World class computing and information science research at Strathclyde...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by researchers from the Department of Computer & Information Sciences involved in mathematically structured programming, similarity and metric search, computer security, software systems, combinatronics and digital health.

The Department also includes the iSchool Research Group, which performs leading research into socio-technical phenomena and topics such as information retrieval and information seeking behaviour.

Explore

Impact of a purina fractal array geometry on beamforming performance and complexity

Karagiannakis, Philippos and Weiss, Stephan and Punzo, Giuliano and Macdonald, Malcolm and Bowman, Jamie and Stewart, Robert (2013) Impact of a purina fractal array geometry on beamforming performance and complexity. In: 21st European Signal Processing Conference, 2013-09-09 - 2013-09-13.

[img]
Preview
PDF (karagiannakis13a)
karagiannakis13a.pdf - Final Published Version

Download (544kB) | Preview

Abstract

This paper investigates the possible benefits of using a Purina fractal array for beamforming, since this particular fractal has recently been suggested as the flight formation for a fractionated space craft. We analyse the beam pattern created by this, and define power concentration as measure of focussing the main beam of a multi-dimensional array. Using this performance metric and the computation cost of the array, a comparison to full lattice arrays is made. We quantify the significant benefits of the Purina array offered over a full lattice array of same complexity particularly at lower frequencies, and the complexity advantages over full lattice arrays of same aperture, particularly if energy is to be concentrated within a small angular spread.