International Journal of Image, Graphics and Signal Processing (IJIGSP)
IJIGSP Vol. 8, No. 12, 8 Dec. 2016
Cover page and Table of Contents: PDF (size: 744KB)
Optimization of MUSIC and Improved MUSIC Algorithm to Estimate Direction of Arrival
Full Text (PDF, 744KB), PP.30-37
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Author(s)
Pooja Gupta
1,*
Vijay Verma
1
Index Terms
DOA, MUSIC, ML, IMUSIC, ULA, ESPRIT
Abstract
The signal processing applications are limited with high-resolution signal parameter estimation. Therefore the Direction of Arrival estimation algorithm needs to be effective and efficient in order to improve the performance of smart antennas. This paper presents the simulation for a subspace based DOA estimation algorithm with high resolution. MUSIC (Multiple signal classification) and the IMUSIC (Improved MUSIC) are presented and optimized by varying various parameters. The basic MUSIC algorithm is ineffective in estimating the incoming coherent signals. The new improved MUSIC algorithm overcomes this ineffectiveness and correctly estimates the related signals with improved accuracy. The improved version of MUSIC algorithm is brought about by taking into account the conjugate of the data matrix for MUSIC algorithm and then reconstructing it. The various factors like the number of array elements, number of snapshots, varying the distance between array elements, varying SNR and the difference in arrival angles can bring about better resolutions. The comparisons for MUSIC and Improved MUSIC algorithm are widely discussed.
Cite This Paper
Pooja Gupta, Vijay Verma,"Optimization of MUSIC and Improved MUSIC Algorithm to Estimate Direction of Arrival", International Journal of Image, Graphics and Signal Processing(IJIGSP), Vol.8, No.12, pp.30-37, 2016. DOI: 10.5815/ijigsp.2016.12.04
Reference
[1]Haykin S,Reilly JP, Vertascitsch E. Some Aspects of Array Signal Processing. IEE Proc. F,1992,139; p1 26.
[2]Zekeriya Aliyazicioglu, H.K. Hwang. Marshall Grice, Anatoly Yakovlev, "Sensitivity analysis for direction of arrival estimation using a Root-MUSIC algorithm", Proceedings of the International Multi Conference of Engineers and Computer Scientists vol II IMECS, 19-21 March 2008
[3]T. S. Rappaport and J. C. Liberti Jr.," Smart Antennas for Wireless Communications: IS-95 and Third Generation CDMA Applications", Upper Saddle River, NJ: Prentice Hall, 1999
[4]Yongliang Wang, " Space Spectral Estimation Theory and Algorithm", China. Tsinghua Press, 2004.
[5]Richard Roy, ThonasKailath, "ESPRIT-Estimation of Signal Parameters via Rotational Invariance Techniques",IEEE Trans on Acoustics Speech and Signal Processing, vol. 37. No.7 pp 984~995, July 1989.
[6]Ronald D, Degrot., "The Constrained MUSIC Problem" ,IEEE Trans on SP.1993. vol. 41(3). P1445~1449.
[7]Fuli Richard,"Analysis of Min-norm and MUSIC with Arbitrary Array Geometry" , IEEE Trans on AES.1990. vol. 26(6). P976~985.
[8]M.Gavish, "Performance Analysis of the VIA ESPRIT Algorithm" ,IEE-Proc-F. 1993. vol. 140(2). P123~128.
[9]B. P. Kumar, G. R. .Branner, "Design of Unequally Spaced Arrays for Performance Improvement", IEEE Trans. On Antennas Propagation, 47 (3): 511-523, 1999.
[10]Y.J Huang, Y.W Wang, F.J Meng, G.L Wang, "A Spatial Spectrum Estimation Algorithm based on Adaptive Beam forming Nulling" ,Piscataway, NJ USA. Jun, 2013. Pp 220-4.
[11]ZHNAG Hongmei, GAO Zhenguo, FU Huixuan, "High Resolution Random Linear Sonar Array Based MUSIC Method for Underwater DOA Estimation" Proceeding of 32nd Chinese Control Conference, July 26-28,2013.
[12]Ralph O, Schmidt, "Multiple Emitter Location and signal Parameter Estimation", IEEE Trans. On Antennas and Propagation, March 1986. vol. 34. No. 3. pp 276-280.
[13]L.N Yan, " Study of Factors Affecting Accuracy of DOA Modern Rader" ,June 2007. vol. 29. No. 6. pp 70-3.
[14]Fei Wen, Qun Wan, Rong Fan, Hewen Wei, "Improved MUSIC Algorithm for Multiple Noncoherent Subarrays" ,IEEE Signal Processing Letters, vol. 21, no. 5, May, 2014
[15]Debasis Kundu, "Modified MUSIC Algorithm for estimating DOA of signals", Department of Mathematics Indian Institute of Technology, Kanpur, India. November 1993.