Publication detail

Fractional-Octave Filters for Energy-Efficient Noise Measurement for Sensor Networks

SCHIMMEL, J. SYSEL, P. KRAJSA, O. RYŠAVÝ, M.

Original Title

Fractional-Octave Filters for Energy-Efficient Noise Measurement for Sensor Networks

Type

conference paper

Language

English

Original Abstract

This paper deals with design of digital bandpass filters for fixed-point arithmetic that fulfills requirements of IEC 61260-1 standard for fractional-octave-band filters. The filters use coupled form and downsampling that provides good approximation of the relative attenuation for fractional-octaveband filters and good stability at low-power fixed-point microprocessors which are essential for energy-efficient processing in sensor networks. For the 16-bit resolution, the IEC 61260-1 Class 1 requirements are fulfilled for designed octave-band filters from 63 Hz and for third-octave-band filters from 50 Hz. Implementation of the IEC 61260-1 fractionaloctave-band filters in low-power noise sensors enables advanced measurements that conform international standards for noise measurements in the smart city or in other sensor network infrastructures.

Keywords

fractional-octave-band filters, coupled-form filter, fixed-point implementation, noise measurement, loudness

Authors

SCHIMMEL, J.; SYSEL, P.; KRAJSA, O.; RYŠAVÝ, M.

Released

5. 11. 2018

ISBN

978-1-5386-9361-2

Book

2018 10th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT)

Pages from

243

Pages to

247

Pages count

5

BibTex

@inproceedings{BUT151161,
  author="Jiří {Schimmel} and Petr {Sysel} and Ondřej {Krajsa} and Marek {Ryšavý}",
  title="Fractional-Octave Filters for Energy-Efficient Noise Measurement for Sensor Networks",
  booktitle="2018 10th International Congress on Ultra Modern Telecommunications and Control Systems
and Workshops (ICUMT)",
  year="2018",
  pages="243--247",
  doi="10.1109/ICUMT.2018.8631255",
  isbn="978-1-5386-9361-2"
}