TY - GEN
T1 - Tensorial Hankel Reconstruction for Multi-Frequency Sparse Array with Sensor Failure
AU - Kong, Youhao
AU - Shen, Qing
AU - Feng, Qining
AU - Liao, Chenxi
AU - Liu, Wei
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025/11
Y1 - 2025/11
N2 - A tensorial Hankel reconstruction method for underdetermined direction of arrival (DOA) estimation with multifrequency sparse arrays is proposed in this paper. Firstly, virtual arrays are extended into a uniform linear array (ULA) across all frequencies and structured as a 3-D tensor. Then, it is transformed into a 4-D Hankel representation via spatial dimension augmentation, where missing elements are dispersed while dimensional information is enriched. After low-rank tensor completion, the restored 4-D Hankel tensor is inversely mapped to the 3-D space for DOA estimation. Simulation results are provided to verify the effectiveness of the proposed method in handling severe data loss from sensor failures.
AB - A tensorial Hankel reconstruction method for underdetermined direction of arrival (DOA) estimation with multifrequency sparse arrays is proposed in this paper. Firstly, virtual arrays are extended into a uniform linear array (ULA) across all frequencies and structured as a 3-D tensor. Then, it is transformed into a 4-D Hankel representation via spatial dimension augmentation, where missing elements are dispersed while dimensional information is enriched. After low-rank tensor completion, the restored 4-D Hankel tensor is inversely mapped to the 3-D space for DOA estimation. Simulation results are provided to verify the effectiveness of the proposed method in handling severe data loss from sensor failures.
KW - multiple frequency
KW - sensor failure
KW - Sparse array
KW - tensorial Hankel reconstruction
KW - underdetermined direction-of-arrival estimation
UR - https://www.scopus.com/pages/publications/105031653616
U2 - 10.1109/SiPS66314.2025.11261307
DO - 10.1109/SiPS66314.2025.11261307
M3 - Conference article published in proceeding or book
AN - SCOPUS:105031653616
T3 - 2025 IEEE Workshop on Signal Processing Systems, SiPS 2025
SP - 1
EP - 5
BT - 2025 IEEE Workshop on Signal Processing Systems, SiPS 2025
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2025 IEEE Workshop on Signal Processing Systems, SiPS 2025
Y2 - 1 November 2025 through 4 November 2025
ER -