Publication result 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

English Title

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

Type

Paper in proceedings (conference paper)

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.

English 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

Key words in English

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

Authors

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

RIV year

2019

Released

05.11.2018

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"
}