TY - GEN
T1 - Passive direction-of-arrival estimation under high noise and strong interference condition for volumetric array
AU - Ma, Qian
AU - Sun, Chao
AU - Liu, Xiong Hou
AU - Xiang, Long Feng
AU - Liu, Zong Wei
PY - 2013
Y1 - 2013
N2 - To enhance the passive direction-of-arrival (DOA) estimation performance of a volumetric array in high noise and strong interference background, a new DOA estimation method based on Fourier integral method (FIM) and inverse beamforming (IBF) is proposed. This method combines the two methods and thus obtains the interference cancelling capability of IBF and the noise suppression ability of FIM simultaneously. Furthermore, the proposed method is generalized to be feasible for arbitrary volumetric array and also achieves the same robustness as the conventional beamforming (CBF). With theoretical analysis and computer simulations, it is shown that with the proposed method, the volumetric array can obtain better DOA estimation results in low signal-to-ratio (SNR) condition as well as in the presence of interferences, when compared to the conventional CBF method.
AB - To enhance the passive direction-of-arrival (DOA) estimation performance of a volumetric array in high noise and strong interference background, a new DOA estimation method based on Fourier integral method (FIM) and inverse beamforming (IBF) is proposed. This method combines the two methods and thus obtains the interference cancelling capability of IBF and the noise suppression ability of FIM simultaneously. Furthermore, the proposed method is generalized to be feasible for arbitrary volumetric array and also achieves the same robustness as the conventional beamforming (CBF). With theoretical analysis and computer simulations, it is shown that with the proposed method, the volumetric array can obtain better DOA estimation results in low signal-to-ratio (SNR) condition as well as in the presence of interferences, when compared to the conventional CBF method.
KW - Fourier integral method (FIM)
KW - Inverse beamforming (IBF)
KW - direction of arrival (DOA) estimation
KW - underwater acoustics
KW - volumetric array
UR - http://www.scopus.com/inward/record.url?scp=84894314633&partnerID=8YFLogxK
U2 - 10.1109/TENCON.2013.6718914
DO - 10.1109/TENCON.2013.6718914
M3 - 会议稿件
AN - SCOPUS:84894314633
SN - 9781479928262
T3 - IEEE Region 10 Annual International Conference, Proceedings/TENCON
BT - 2013 IEEE International Conference of IEEE Region 10, IEEE TENCON 2013 - Conference Proceedings
T2 - 2013 IEEE International Conference of IEEE Region 10, IEEE TENCON 2013
Y2 - 22 October 2013 through 25 October 2013
ER -