TY - GEN
T1 - A Cross-Correlation Threshold Based Direction-of-Arrival Estimator for Active Sensing Systems
AU - Mao, Linlin
AU - Yan, Shefeng
AU - Xu, Lijun
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/11/30
Y1 - 2018/11/30
N2 - In this paper, we aim to improve the direction-of-Arrival (DOA) estimation performance at low signal-To-noise ratios (SNRs) for active underwater sensing systems. A cross-correlation based Multiple Signal Classification (MUSIC) method is proposed, which perform matrix decomposition over the spatial covariance calculated from the cross-correlation sequences between the transmit waveform and the array output. It is shown via theoretical analysis that crosscorrelation processing preserves the phase information between array elements while suppressing the noise. Inspired by endpoint detection, a cross-correlation threshold based method is also developed to reduce the computation burden and further improve the performance of DOA estimation. Simulation results illustrate the superior performance of the proposed methods.
AB - In this paper, we aim to improve the direction-of-Arrival (DOA) estimation performance at low signal-To-noise ratios (SNRs) for active underwater sensing systems. A cross-correlation based Multiple Signal Classification (MUSIC) method is proposed, which perform matrix decomposition over the spatial covariance calculated from the cross-correlation sequences between the transmit waveform and the array output. It is shown via theoretical analysis that crosscorrelation processing preserves the phase information between array elements while suppressing the noise. Inspired by endpoint detection, a cross-correlation threshold based method is also developed to reduce the computation burden and further improve the performance of DOA estimation. Simulation results illustrate the superior performance of the proposed methods.
KW - Direction-of-Arrival (DOA) estimation
KW - active underwater sensing systems
KW - cross-correlation
UR - http://www.scopus.com/inward/record.url?scp=85059965570&partnerID=8YFLogxK
U2 - 10.1109/WCSP.2018.8555937
DO - 10.1109/WCSP.2018.8555937
M3 - Conference contribution
AN - SCOPUS:85059965570
T3 - 2018 10th International Conference on Wireless Communications and Signal Processing, WCSP 2018
BT - 2018 10th International Conference on Wireless Communications and Signal Processing, WCSP 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th International Conference on Wireless Communications and Signal Processing, WCSP 2018
Y2 - 18 October 2018 through 20 October 2018
ER -