DOA Estimation Using Modified Covariance Matrix

Rahmat Sanudin*, Nurul Hazlina Noordin, Tughrul Arslan

*Corresponding author for this work

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

Abstract

This work proposes a new method to estimate direction-of-arrival (DOA) for directional antenna arrays. An obvious modification in the proposed method is the inclusion of changes of array gain in matrix calculation. This method is proposed in order to suit the characteristic of directional antenna array. Computer simulations are performed to verify the performance of the proposed method. Simulations results show that the proposed method significantly improves the estimation resolution up to 10 degrees. The proposed method also improves error of estimation provided that number of snapshots is more than 150, SNR is more than 5dB and signals separation is not more than 13 degrees. In general, the proposed method has outperformed conventional method in DOA estimation for directional antenna array.

Original languageEnglish
Title of host publication2012 LOUGHBOROUGH ANTENNAS & PROPAGATION CONFERENCE (LAPC)
Place of PublicationNEW YORK
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages4
Publication statusPublished - 2012
EventLoughborough Antennas and Propagation Conference (LAPC) - Loughborough, United Kingdom
Duration: 12 Nov 201213 Nov 2012

Conference

ConferenceLoughborough Antennas and Propagation Conference (LAPC)
CountryUnited Kingdom
Period12/11/1213/11/12

Keywords

  • direction of estimation
  • array gain
  • covariance matrix
  • ALGORITHM
  • ANTENNA

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