TY - GEN
T1 - UNDERDETERMINED TWO-DIMENSIONAL LOCALIZATION FOR WIDEBAND SOURCES BASED ON DISTRIBUTED SENSOR ARRAY NETWORKS
AU - Wu, Hantian
AU - Shen, Qing
AU - Liu, Wei
AU - Liang, Yibao
N1 - Publisher Copyright:
© 2022 IEEE
PY - 2022
Y1 - 2022
N2 - In this paper, we consider the underdetermined two dimensional (2-D) source localization problem for wideband sources based on a distributed sensor array network, where a sparse sub-array is placed on each observation platform and the source number is larger than the sensor number of each sub-array. The received signals are first decomposed into different frequency bins via discrete Fourier transform (DFT), followed by the vectorization process to obtain the virtual array model with a larger aperture. Then, focusing is applied to the virtual array instead of the physical array for performance improvement, and a group sparsity based 2-D localization method exploiting the difference co-array is proposed, with increased DOFs for localization. Improved performance is achieved as demonstrated by computer simulations.
AB - In this paper, we consider the underdetermined two dimensional (2-D) source localization problem for wideband sources based on a distributed sensor array network, where a sparse sub-array is placed on each observation platform and the source number is larger than the sensor number of each sub-array. The received signals are first decomposed into different frequency bins via discrete Fourier transform (DFT), followed by the vectorization process to obtain the virtual array model with a larger aperture. Then, focusing is applied to the virtual array instead of the physical array for performance improvement, and a group sparsity based 2-D localization method exploiting the difference co-array is proposed, with increased DOFs for localization. Improved performance is achieved as demonstrated by computer simulations.
KW - Distributed sensor array networks
KW - difference co-array
KW - focusing
KW - group sparsity
KW - two-dimensional localization
UR - http://www.scopus.com/inward/record.url?scp=85131247810&partnerID=8YFLogxK
U2 - 10.1109/ICASSP43922.2022.9746338
DO - 10.1109/ICASSP43922.2022.9746338
M3 - Conference contribution
AN - SCOPUS:85131247810
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 5133
EP - 5137
BT - 2022 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2022 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 47th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2022
Y2 - 23 May 2022 through 27 May 2022
ER -