Call for Paper - January 2021 Edition
IJCA solicits original research papers for the January 2021 Edition. Last date of manuscript submission is December 21, 2020. Read More

Robust Direction of Arrival Estimation using Subspace Methods

International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Year of Publication: 2017
Ch. Kusuma Kumari, G. Radha Kumari

Ch. Kusuma Kumari and Radha G Kumari. Robust Direction of Arrival Estimation using Subspace Methods. International Journal of Computer Applications 159(1):24-29, February 2017. BibTeX

	author = {Ch. Kusuma Kumari and G. Radha Kumari},
	title = {Robust Direction of Arrival Estimation using Subspace Methods},
	journal = {International Journal of Computer Applications},
	issue_date = {February 2017},
	volume = {159},
	number = {1},
	month = {Feb},
	year = {2017},
	issn = {0975-8887},
	pages = {24-29},
	numpages = {6},
	url = {},
	doi = {10.5120/ijca2017912686},
	publisher = {Foundation of Computer Science (FCS), NY, USA},
	address = {New York, USA}


Direction of arrival (DOA) estimation is one of the focal problems in the fields of Wireless communications, Radar, Sonar, Radio Astronomy and Seismology. The main objective of the DOA estimation is to obtain the desired signals direction as well as the interference signals direction based on the data received from the array sensor at the base station. In the literature various techniques are available among which the two high resolution algorithms namely MUSIC (MUltiple SIgnal Classification) and ESPRIT (Estimation of Signal Parameters via Rotational Invariance Technique) are used for direction of arrival estimation in this paper. The work presented in this paper deals with EMD application to the DOA estimation as a preprocessing technique. The key feature of EMD is to decompose a signal into sum of intrinsic mode functions (IMF’s) with a final residue. This technique separately de-noises the rows of the array data matrix where each row corresponds to the output of a particular array sensor. Especially in low-SNR conditions, the estimation performance of MUSIC and ESPRIT algorithms is enhanced significantly when de-noising is given to array data matrix prior to DOA estimation stage.


  1. Moustafa M. Abdalla, Mostafa B. Abuitbel, Mohamed A. Hassan, 2013." Performance evaluation of Direction Of Arrival estimation using music and esprit algorithms for mobile communication systems”IEEE.
  2. Frank B. Gross,2005. Smart Antennas for Wireless Communications.
  3. Mustafa Abdalla, Khaled A. Madi, and Rajab Farhat, 2012. “Sensitivity Analysis for Direction Of Arrival Estimation Using Capon and Music Algorithms in Mobile Radio Environment”, World Academy of Science, Engineering and Technology72, 1756-1761.
  4. N.E.Huang, Z. Shen, S. R. Long et al.,1998.“The empirical mode decomposition and the Hubert spectrum for nonlinear and non-stationary time series analysis,” Proceedings of the RoyalSociety A, 454, 903–995.
  5. Dr. Md. Rafiqul Islam, Ibrahim A. H. Adam.2009. “Performance Study of Direction of Arrival (DOA) Estimation Algorithms for Linear Array Antenna”,IEEE, 268-271.
  6. Andy VESA, Arpad IOZSA,2010. “Direction – of – Arrival Estimation for Uniform Sensor Arrays”,IEEE,10, 249-252.
  7. K.Al-Midfa, ''Investigation of Direction-of-Arrival Algorithms''.2003.Ph.D. Thesis, University of Bristol, UK,
  8. Schmidt. R1986. “Multiple Emitter Location and Signal Parameter Estimation,” IEEE Transactions on Antenna. Propagation, 2, 276–280.
  9. Roy, R., and T. Kailath, 1989.“ESPRIT—Estimation of Signal Parameters Via Rotational Invariance Techniques,” IEEE Transactions,37, 7:984–995.
  10. Godara.L,1997. “Application of Antenna Arrays to Mobile Communications, Part II: Beam-Forming and Direction-of-Arrival Considerations,” Proceedings of the IEEE, 85, 8:1195–1245.
  11. Liberti, J., and T. Rappaport, 1999.Smart Antennas forWireless Communications, Prentice Hall, New York.
  12. W.-B. Jin and Y. Jun, 2007.“Velocity determination of single sound source based on Doppler Effect,” IEEE, 956–961.
  13. Raja Sekhar Yeduri, G.Radha kumari, Dr.Ch.Kusma Kumari,2014. “Robust direction of arrival estimation using multiple signal analysis”,International Journal of Computer Applications (0975 – 8887),101,11:17-21.


Direction of arrival (DOA), Multiple Signal Classification (MUSIC), Estimation of Signal Parameters via Rotational Invariance Technique (ESPRIT), Empirical Mode Decomposition (EMD), Intrinsic Mode Function (IMF).