TY - JOUR
T1 - Performance evaluation of wideband microwave direction-of-arrival estimation using luneburg lens
AU - Yu, Xiaoju
AU - Liang, Min
AU - Xin, Hao
N1 - Publisher Copyright:
© 2002-2011 IEEE.
PY - 2017/7/6
Y1 - 2017/7/6
N2 - In this letter, a wideband passive direction-finding (DF) system utilizing Luneburg lens is investigated. A number of detectors are placed uniformly on the surface of the equatorial plane of the Luneburg lens. Based on the received signal amplitude distribution at the detectors, the direction of arrival (DoA) is estimated using the correlation method. The root mean square errors (RMSEs) of the DoA estimation are calculated for various lens sizes, signal-to-noise ratios, and number of detectors within the frequency band from 9 to 11 GHz. To examine the proposed DF system performance, the Cramér-Rao bound on the RMSEs of the DoA estimation is derived and compared to the simulated RMSEs using the correlation method.
AB - In this letter, a wideband passive direction-finding (DF) system utilizing Luneburg lens is investigated. A number of detectors are placed uniformly on the surface of the equatorial plane of the Luneburg lens. Based on the received signal amplitude distribution at the detectors, the direction of arrival (DoA) is estimated using the correlation method. The root mean square errors (RMSEs) of the DoA estimation are calculated for various lens sizes, signal-to-noise ratios, and number of detectors within the frequency band from 9 to 11 GHz. To examine the proposed DF system performance, the Cramér-Rao bound on the RMSEs of the DoA estimation is derived and compared to the simulated RMSEs using the correlation method.
KW - Correlation
KW - Cramér-Rao bound (CRB)
KW - Luneburg lens antennas
KW - direction-of-arrival (DoA) estimation
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U2 - 10.1109/LAWP.2017.2723895
DO - 10.1109/LAWP.2017.2723895
M3 - Article
AN - SCOPUS:85023179264
SN - 1536-1225
VL - 16
SP - 2453
EP - 2456
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
M1 - 7970098
ER -