Research Article
Teager-Kaiser energy detector for narrowband wireless microphone spectrum sensing
@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
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.