WEN Fei, WAN Qun, HE Guibo, ZHANG Peng, LIU Yipeng. Wideband Direction of Arrival Estimation with Linear Array:Analysis and Closed-Form Formulae[J]. Chinese Journal of Electronics, 2013, 22(4): 779-783.
Citation: WEN Fei, WAN Qun, HE Guibo, ZHANG Peng, LIU Yipeng. Wideband Direction of Arrival Estimation with Linear Array:Analysis and Closed-Form Formulae[J]. Chinese Journal of Electronics, 2013, 22(4): 779-783.

Wideband Direction of Arrival Estimation with Linear Array:Analysis and Closed-Form Formulae

Funds:  This work is supported by the National Natural Science Foundation of China (No.61172140).
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  • Corresponding author: WEN Fei, WAN Qun
  • Received Date: 2012-04-01
  • Rev Recd Date: 2012-05-01
  • Publish Date: 2013-09-25
  • To estimate the Direction-of-arrival (DOA) of a far-field wideband source using a linear array, the Time-difference-of-arrival (TDOA) based and Steeredresponse power (SRP) algorithms are of the most useful. In this paper, for white Gaussian signal and noise, the estimation variances of both the methods and the Cramer-Rao lower bound (CRLB) are derived in closed-form for a linear array. Meanwhile, a Gauss-Markov (GM) procedure is introduced to achieve optimal conversion of the estimated delay vectors for the TDOA based estimator. Moreover, a generalized SR Pestimator is proposed for the generalized case with nonuniform SNR.
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