Synchronization of Low-Cost Distributed Spectrum Sensing Nodes for Multilateration-Based Geolocation

Tutkimustuotos: Artikkeli kirjassa/raportissa/konferenssijulkaisussaKonferenssiartikkeliTieteellinenvertaisarvioitu

Abstrakti

In this work, we show how a distributed sensing network consisting of very low-cost nodes can also be used to locate radio transmitters without prior knowledge of which waveform is used. This information can aid in increasing location awareness among cognitive radios, as well as provide assistance in locating offending transmitters. The low accuracy of the internal clocks of these low-cost receivers as well as the geographical distribution of the nodes result in significant challenges regarding the synchronization of the receivers in order to position the source with adequate accuracy. In this paper, we synchronize the nodes to an arbitrary modulated RF signal, after which we calculate estimated time differences of arrival (TDOAs) to an unknown transmitter. We describe the implementation as well as give results on measurement accuracy in various scenarios using a prototype network of nodes spread out in the city of Turku, Finland.
AlkuperäiskieliEi tiedossa
OtsikkoProceedings of SDR-WinnComm 2015: Wireless Innovation Conference on Wireless Communications Technologies and Software Defined Radio
ToimittajatPucker Lee, Glossner John, Hamill Stephanie
KustantajaWireless Innovation Forum
Sivut223–229
TilaJulkaistu - 2015
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaWireless Innovation Forum Conference on Wireless Communications Technologies and Software Defined Radio - Wireless Innovation Forum Conference on Wireless Communications Technologies and Software Defined Radio
Kesto: 24 maaliskuuta 201526 maaliskuuta 2015

Konferenssi

KonferenssiWireless Innovation Forum Conference on Wireless Communications Technologies and Software Defined Radio
Ajanjakso24/03/1526/03/15

Keywords

  • Geolocation
  • Spectrum sensing

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