5th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications

Research Article

Teager-Kaiser energy detector for narrowband wireless microphone spectrum sensing

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  • @INPROCEEDINGS{10.4108/ICST.CROWNCOM2010.9254,
        author={Matthieu Gautier and Marc Laugeois and Dominique Noguet},
        title={Teager-Kaiser energy detector for narrowband wireless microphone spectrum sensing},
        proceedings={5th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications},
        publisher={IEEE},
        proceedings_a={CROWNCOM},
        year={2010},
        month={9},
        keywords={Correlation Detectors Microphones Narrowband Wireless communication Wireless sensor networks},
        doi={10.4108/ICST.CROWNCOM2010.9254}
    }
    
  • Matthieu Gautier
    Marc Laugeois
    Dominique Noguet
    Year: 2010
    Teager-Kaiser energy detector for narrowband wireless microphone spectrum sensing
    CROWNCOM
    IEEE
    DOI: 10.4108/ICST.CROWNCOM2010.9254
Matthieu Gautier1,*, Marc Laugeois1, Dominique Noguet1
  • 1: CEA, LETI, Minatec, Grenoble, France
*Contact email: matthieu.gautier1@cea.fr

Abstract

In this paper, the wireless microphone sensing is addressed for a TV white space communication and we aim to achieve an efficient semi-blind detection of narrowband FM modulation signals. To this end, the proposed solution is to use the Teager-Kaiser energy operator which takes into account the non-linear model of speech. Then, a filterbank based technique splits the analysis of the wideband signal into subbands in order to increase the accuracy of the algorithms. Simulation results show that a 4 dB detection gain could be achieved by the Teager-Kaiser energy detector compared to the energy detector. The subbands decomposition leads to a further 4 dB improvement. Experimental measurements allow a realistic validation of the proposed solutions.