In-flight calibration of STEREO-B/WAVES antenna system
M. Panchenko, W. Macher, H. O. Rucker, G. Fischer, T. H. Oswald, B., Cecconi, and M. Maksimovic

TL;DR
This paper details the in-flight calibration of the STEREO-B/WAVES antenna system using terrestrial auroral kilometric radiation, improving data accuracy for radio spectrum measurements in space.
Contribution
It introduces a novel in-flight calibration method combining least squares and genetic algorithms to determine antenna effective length vectors.
Findings
Calibration results confirm previous antenna analyses.
Final antenna parameters enhance SWAVES data evaluation.
Method improves accuracy of space-based radio measurements.
Abstract
The STEREO/WAVES (SWAVES) experiment on board the two STEREO spacecraft (Solar Terrestrial Relations Observatory) launched on 25 October 2006 is dedicated to the measurement of the radio spectrum at frequencies between a few kilohertz and 16 MHz. The SWAVES antenna system consists of 6 m long orthogonal monopoles designed to measure the electric component of the radio waves. With this configuration direction finding of radio sources and polarimetry (analysis of the polarization state) of incident radio waves is possible. For the evaluation of the SWAVES data the receiving properties of the antennas, distorted by the radiation coupling with the spacecraft body and other onboard devices, have to be known accurately. In the present context, these properties are described by the antenna effective length vectors. We present the results of an in-flight calibration of the SWAVES antennas using…
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