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Advances in Radio Science An open-access journal of the U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V.
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Volume 13
Adv. Radio Sci., 13, 1–8, 2015
https://doi.org/10.5194/ars-13-1-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Adv. Radio Sci., 13, 1–8, 2015
https://doi.org/10.5194/ars-13-1-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

  03 Nov 2015

03 Nov 2015

A novel ZePoC encoder for sinusoidal signals with a predictable accuracy for an AC power standard

T. Vennemann1, T. Frye1, Z. Liu1, M. Kahmann2, and W. Mathis1 T. Vennemann et al.
  • 1Institut für Theoretische Elektrotechnik (TET), Gottfried Wilhelm Leibniz Universität , Hannover, Germany
  • 2Physikalisch-Technische Bundesanstalt (PTB), Braunschweig, Germany

Abstract. In this paper we present an analytical formulation of a Zero Position Coding (ZePoC) encoder for an AC power standard based on class-D topologies. For controlling a class-D power stage a binary signal with special spectral characteristics will be generated by this ZePoC encoder for sinusoidal signals. These spectral characteristics have a predictable accuracy within a separated baseband to keep the noise floor below a specified level. Simulation results will validate the accuracy of this novel ZePoC encoder. For a real-time implementation of the encoder on a DSP/FPGA hardware architecture a trade-off between accuracy and speed of the ZePoC algorithm has to be made. Therefore the numerical effects of different floating point formats will be analyzed.

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