Adaptive chirp beamforming for direction-of-arrival estimation of wideband chirp signals in sensor arrays

被引：0
|
作者：
Kim, Jeong-Soo [1 ]
Choi, Byung-Woong [1 ]
Bae, Eun-Hyon [1 ]
Lee, Kyun-Kyung [1 ]
机构：
[1] Kyungpook Natl Univ, Sch Elect Engn & Comp Sci, Taegu, South Korea
来源：
IEICE TRANSACTIONS ON COMMUNICATIONS | 2008年 / E91B卷 / 08期
关键词：
chirp signal; adaptive beamforming; DOA estimation; uniform linear array;
D O I：
10.1093/ietcom/e91-b.8.2757
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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.
引用
收藏
页码：2757 / 2760
页数：4
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