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

WEN Fei; WAN Qun; HE Guibo; ZHANG Peng; LIU Yipeng

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Article Navigation > Chinese Journal of Electronics > 2013 > 22(4): 779-783

WEN Fei, WAN Qun, HE Guibo, et al., “Wideband Direction of Arrival Estimation with Linear Array：Analysis and Closed-Form Formulae,” Chinese Journal of Electronics, vol. 22, no. 4, pp. 779-783, 2013,

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WEN Fei, WAN Qun, HE Guibo, et al., “Wideband Direction of Arrival Estimation with Linear Array：Analysis and Closed-Form Formulae,” Chinese Journal of Electronics, vol. 22, no. 4, pp. 779-783, 2013,

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

WEN Fei^{1,2
,},
WAN Qun¹,
HE Guibo²,
ZHANG Peng²,
LIU Yipeng³

1.
Department of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China;
2.
Air Control and Navigation Institution, Air Force Engineering University, Xi'an 710000, China;
3.
Department of Electrical Engineering, KU Leuven/IBBT Future, Heverlee 3001, Belgium

Funds: This work is supported by the National Natural Science Foundation of China (No.61172140).

More Information

Corresponding author: WEN Fei, WAN Qun
Received Date: 2012-04-01
Rev Recd Date: 2012-05-01
Publish Date: 2013-09-25

Abstract

Abstract

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.
- Array signal processing,
- Direction-ofarrival (DOA),
- Time delay estimation,
- Wideband signal

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References(12)

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