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Adaptive Chirp Beamforming for Direction-of-Arrival Estimation of Wideband Chirp Signals in Sensor Arrays

Jeong-Soo KIM, Byung-Woong CHOI, Eun-Hyon BAE, Kyun-Kyung LEE

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Summary :

An adaptive chirp beamforming method is proposed to solve the bias problem in the direction-of-arrival (DOA) estimation of wideband chirp signals that have identical time-frequency parameters yet emanate from different directions. The proposed method, based on the steered minimum variance (STMV) method, exploits the time-frequency structure of a chirp signal to improve the DOA estimation performance by effectively suppressing the wideband chirp interferences causing the bias. Simulations are performed to demonstrate the effectiveness of the proposed method.

Publication
IEICE TRANSACTIONS on Communications Vol.E91-B No.8 pp.2757-2760
Publication Date
2008/08/01
Publicized
Online ISSN
1745-1345
DOI
10.1093/ietcom/e91-b.8.2757
Type of Manuscript
LETTER
Category
Antennas and Propagation

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