TY - GEN
T1 - Two-Dimensional DOA Finding Method for Noncircular Signals with Unknown Mutual Coupling of Rectangular Arrays
AU - Wang, Qiuping
AU - Xie, Jian
AU - Li, Wenqiao
AU - Wang, Yuexian
AU - Yang, Xin
AU - Qu, Jiaqing
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/10
Y1 - 2019/10
N2 - Noncircular signals have promising application potential in array signal processing, especially for 2D direction finding. However, the performance of the existing algorithms for 2D DOA (Direction of Arrival) finding will be downgraded because of the unknown mutual coupling of arrays. On the other hand, most existing algorithms search in two-dimensional space, which requires a lot of computation. To address these problems, a two-dimensional DOA finding algorithm for noncircular signal sources under the condition of unknown mutual coupling of uniform rectangular array is proposed in this paper. Based on uniform rectangular array, the 2D spectral peak search is transformed to two-level 1D spectral peak search for estimation, which greatly reduces the computational complexity. At the same time, the noncircular signal is introduced, and the performance of the maximum estimation source number and parameter estimation can be improved by making use of its noncircular characteristics. Simulation results certificate both the low calculational complication and the efficiency of the proposed algorithm for noncircular sources parameter estimation.
AB - Noncircular signals have promising application potential in array signal processing, especially for 2D direction finding. However, the performance of the existing algorithms for 2D DOA (Direction of Arrival) finding will be downgraded because of the unknown mutual coupling of arrays. On the other hand, most existing algorithms search in two-dimensional space, which requires a lot of computation. To address these problems, a two-dimensional DOA finding algorithm for noncircular signal sources under the condition of unknown mutual coupling of uniform rectangular array is proposed in this paper. Based on uniform rectangular array, the 2D spectral peak search is transformed to two-level 1D spectral peak search for estimation, which greatly reduces the computational complexity. At the same time, the noncircular signal is introduced, and the performance of the maximum estimation source number and parameter estimation can be improved by making use of its noncircular characteristics. Simulation results certificate both the low calculational complication and the efficiency of the proposed algorithm for noncircular sources parameter estimation.
KW - DOA finding
KW - mutual coupling
KW - noncircular signals
KW - rank reduction
UR - http://www.scopus.com/inward/record.url?scp=85080899393&partnerID=8YFLogxK
U2 - 10.1109/ICUS48101.2019.8996051
DO - 10.1109/ICUS48101.2019.8996051
M3 - 会议稿件
AN - SCOPUS:85080899393
T3 - Proceedings of the 2019 IEEE International Conference on Unmanned Systems, ICUS 2019
SP - 955
EP - 960
BT - Proceedings of the 2019 IEEE International Conference on Unmanned Systems, ICUS 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE International Conference on Unmanned Systems, ICUS 2019
Y2 - 17 October 2019 through 19 October 2019
ER -