Search results for "Pseudo-noise seequences"

showing 1 items of 1 documents

Simultaneous ranging and self-positioning in unsynchronized wireless acoustic sensor networks

2016

Automatic ranging and self-positioning is a very desirable property in wireless acoustic sensor networks, where nodes have at least one microphone and one loudspeaker. However, due to environmental noise, interference, and multipath effects, audio-based ranging is a challenging task. This paper presents a fast ranging and positioning strategy that makes use of the correlation properties of pseudonoise sequences for estimating simultaneously relative time-of-arrivals from multiple acoustic nodes. To this end, a proper test signal design adapted to the acoustic node transducers is proposed. In addition, a novel self-interference reduction method and a peak matching algorithm are introduced, a…

Wireless acoustic sensor networksMicrophoneComputer scienceReal-time computing02 engineering and technologyInterference (wave propagation)SynchronizationlocalizationTECNOLOGIA ELECTRONICA0202 electrical engineering electronic engineering information engineeringWirelessElectrical and Electronic Engineeringwireless acoustic sensor networksbusiness.industryRangingNode (networking)020208 electrical & electronic engineeringpseudo-noise seequences020206 networking & telecommunicationsRangingTransducerComputer Science::SoundEmbedded systemLocalizationSignal ProcessingLoudspeakerbusinessPseudo-noise seequencesMultipath propagation
researchProduct