Title :
Effect of geometry of planar antenna arrays on Cramer-Rao Bounds for DOA estimation
Author :
Xiaopeng Yang ; Teng Long ; Sarkar, T.K.
Author_Institution :
Sch. of Inf. & Electron., Beijing Inst. of Technol., Beijing, China
Abstract :
In this paper, the effect of the geometry of planar antenna arrays on the accuracy of Direction of Arrival (DOA) estimation of impinging signals is studied. The expressions of Cramer-Rao Bounds (CRB) for the two-dimensional (2-D) DOA estimation are derived. Based on the hexagonal, square, L, cross and Y shaped antenna arrays, the CRBs of the elevation and azimuth angles of estimated DOA are investigated according to the received power ratio of signal to noise (SNR) and the fixed and the changing direction of impinging signal.
Keywords :
direction-of-arrival estimation; geometry; planar antenna arrays; 2D direction of arrival estimation; Cramer-Rao bounds; L shaped antenna array; Y shaped antenna array; cross shaped antenna array; geometry; hexagonal shaped antenna array; impinging signals; planar antenna arrays; square shaped antenna array; Accuracy; Azimuth; Direction of arrival estimation; Estimation; Geometry; Planar arrays; Antenna Arrray; Cramer-Rao Bounds (CRB); Direction of Arrival (DOA) Estimation;
Conference_Titel :
Signal Processing (ICSP), 2010 IEEE 10th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-5897-4
DOI :
10.1109/ICOSP.2010.5657183
