TY - GEN
T1 - Wideband DOA estimation based on a-shaped array
AU - Shi, Juan
AU - Zhang, Qunfei
AU - Wang, Yue
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/12/29
Y1 - 2017/12/29
N2 - In the underwater passive target detection system, direction of arrival (DOA) estimation of traditional uniform linear array (ULA) becomes poor when targets come from the direction of end-fire. To solve this problem, this paper develops a new DOA estimation method for the wideband signal based on A-shaped array, which is implemented via two ULAs distributed with a specific angle. Firstly, the A-shaped array structure is introduced and the received wideband signal of the array is modeled. To deal with the wideband signal, the minimum variance distortionless response (MVDR) beam forming is applied based on sub-band decomposition to obtain the spatial spectrum accurately. Next, the directions of the targets are estimated by locating the position of spectral peaks. Simulation results shows that the proposed A-shaped array solution outperforms the traditional ULA in terms of higher accuracy, which sheds lights on the design of practial deployment of DOA estimation for underwater wideband signals.
AB - In the underwater passive target detection system, direction of arrival (DOA) estimation of traditional uniform linear array (ULA) becomes poor when targets come from the direction of end-fire. To solve this problem, this paper develops a new DOA estimation method for the wideband signal based on A-shaped array, which is implemented via two ULAs distributed with a specific angle. Firstly, the A-shaped array structure is introduced and the received wideband signal of the array is modeled. To deal with the wideband signal, the minimum variance distortionless response (MVDR) beam forming is applied based on sub-band decomposition to obtain the spatial spectrum accurately. Next, the directions of the targets are estimated by locating the position of spectral peaks. Simulation results shows that the proposed A-shaped array solution outperforms the traditional ULA in terms of higher accuracy, which sheds lights on the design of practial deployment of DOA estimation for underwater wideband signals.
KW - A-shaped array
KW - DOA estimation
KW - MVDR
KW - passive target detection system
KW - wideband signal
UR - http://www.scopus.com/inward/record.url?scp=85049226615&partnerID=8YFLogxK
U2 - 10.1109/ICSPCC.2017.8242605
DO - 10.1109/ICSPCC.2017.8242605
M3 - 会议稿件
AN - SCOPUS:85049226615
T3 - 2017 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2017
SP - 1
EP - 5
BT - 2017 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2017
Y2 - 22 October 2017 through 25 October 2017
ER -