Title :
Sensitivity analysis of DOA estimation using the ESPRIT algorithm
Author :
Lok, Alfred Tsz Yin ; Davoodian, Payam ; Chin, Ridwan C. ; Bermudez, Jose ; Aliyazicioglu, Zekeriya ; Hwang, H.K.
Author_Institution :
Electr. & Comput. Eng., California State Polytech. Univ.-Pomona, Pomona, CA, USA
Abstract :
An array antenna system with innovative advanced signal processing can reduce the direction of arrival (DOA) estimation variance. This paper presents the DOA estimation by estimation of signal parameters via rotational invariant technique (ESPRIT). Two different array antennas are used in this simulation study. The DOA performance as a function of signal to noise ratio (SNR), number of snapshots and effect of spatial smoothing are discussed in this paper. The position of array antenna elements may deviate from the ideal location. The imprecise element position will increase the DOA estimation variance. Sensitivity analysis due to non-ideal element position is also discussed in this paper.
Keywords :
antenna arrays; direction-of-arrival estimation; signal processing; smoothing methods; DOA estimation; ESPRIT algorithm; array antenna elements; array antenna system; direction of arrival estimation variance; innovative advanced signal processing; rotational invariant technique; sensitivity analysis; signal parameter estimation; signal to noise ratio; spatial smoothing; Antenna arrays; Array signal processing; Biomedical signal processing; Direction of arrival estimation; Multiple signal classification; Parameter estimation; Sensitivity analysis; Signal processing; Signal processing algorithms; Signal to noise ratio;
Conference_Titel :
Aerospace Conference, 2010 IEEE
Conference_Location :
Big Sky, MT
Print_ISBN :
978-1-4244-3887-7
Electronic_ISBN :
1095-323X
DOI :
10.1109/AERO.2010.5446914
