Radiation properties of moving constellations of (nano) satellites

A complexity study

Conference paper (2016)

Authors

W.P. Bruinsma Tera-Hertz Sensing - EEMCS
Robin P. Hes External organisation
S. Bosma Information Management
I.E. Lager Electrical Engineering Education - EEMCS
Mark J Bentum University of Twente
Research Group
Tera-Hertz Sensing (EEMCS) (TU Delft)
Array signal processing Antenna arrays Satellites Three-dimensional displays Antenna radiation patterns Satellite broadcasting Satellite antennas
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Published Date

2016

Language

English

Reuse Rights

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Tera-Hertz Sensing

Abstract

The (computational) complexity involved by beamforming in moving constellations of (nano) satellites is investigated by means of illustrative numerical experiments. While the number of radiators in such three-dimensional (3D) array antennas is not large, evaluating their radiation patterns entails challenging computational intricacies in view of the satellites being in motion and each satellite performing general 3D rotations. As a result, the relevant array radiation patterns become time-dependent, the elementary radiation patterns being themselves time-dependent. The discussed experiments will illustrate the time evolution of the radiation pattern for given individual satellite orbits and rotation laws. At the same time, they will provide a basis for estimating the computational complexity involved by predicting the complete beamforming in future space-bound remote sensing missions using constellations of (nano) satellites.