Aperture-array directional sensing using 2-D beam digital filters with doppler-radar front-ends

Tharindu Randeny, Arjuna Madanayake, Arindam Sengupta, Yiran Li, Changzhi Li

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A directional sensing algorithm is proposed employing doppler radar and low-complexity 2-D IIR spatially bandpass filters. The speed of the scatterer is determined by the frequency shift of the received signal following down-conversion. The downconversion is done by mixing it with the instantaneous transmitted signal. The direction of the scatterer is determined by the means of 2-D plane-wave spectral characteristics, using 2-D IIR beam filters. The proposed architecture was simulated for three scatterers at 10,° 30,° 60° from array broadside, traveling at speeds of 31 ms, -1 18 ms-1 and 27 ms -1, respectively. A doppler radar module was used to transmit and receive reflected signals, that has a carrier frequency of 2.4 GHz. Simulations show both direction and doppler information being enhanced.

Original languageEnglish
Title of host publicationMERCon 2015 - Moratuwa Engineering Research Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages265-270
Number of pages6
ISBN (Electronic)9781479917402
DOIs
StatePublished - May 22 2015
Event1st Moratuwa Engineering Research Conference, MERCon 2015 - Moratuwa, Sri Lanka
Duration: Apr 7 2015Apr 8 2015

Publication series

NameMERCon 2015 - Moratuwa Engineering Research Conference

Conference

Conference1st Moratuwa Engineering Research Conference, MERCon 2015
CountrySri Lanka
CityMoratuwa
Period04/7/1504/8/15

Keywords

  • 2-D IIR digital filters
  • Multidimensional signal processing
  • cyberphysical systems
  • directional sensing
  • doppler
  • radar

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  • Cite this

    Randeny, T., Madanayake, A., Sengupta, A., Li, Y., & Li, C. (2015). Aperture-array directional sensing using 2-D beam digital filters with doppler-radar front-ends. In MERCon 2015 - Moratuwa Engineering Research Conference (pp. 265-270). [7112357] (MERCon 2015 - Moratuwa Engineering Research Conference). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MERCon.2015.7112357