Title :
DOA estimation of coherent signals based on subspace tracking algorithm
Author :
Yuan, Xiaodong ; Wan, Jianwei ; Cheng, Zhu ; Xu, Ke ; Shi, Binbin
Author_Institution :
Nat. Univ. of Defense Technol., Changsha, China
Abstract :
A novel method for high resolution direction-of-arrival (DOA) estimation is proposed. The novel approach constructs the spatial spectrum by utilizing the noise subspace, which is updated by stable and robust subspace tracking algorithm. A practical method for the DOA estimation of coherent signals is also presented, which utilizes the symmetric conjugate vector in direct data domain. Compared to the conventional method, the proposed approach is a practical method for real-time DOA estimation of coherent signals with low computational complexity.
Keywords :
computational complexity; direction-of-arrival estimation; real-time systems; signal resolution; spectral analysis; tracking; vectors; coherent signals; computational complexity; direct data domain; high resolution direction-of-arrival estimation; noise subspace; real-time DOA estimation; spatial spectrum; subspace tracking algorithm; symmetric conjugate vector; Arrays; Classification algorithms; Direction of arrival estimation; Estimation; Noise; Signal processing algorithms; Vectors; DOA estimation; coherent signals; low complexity; subspace tracking;
Conference_Titel :
Transportation, Mechanical, and Electrical Engineering (TMEE), 2011 International Conference on
Conference_Location :
Changchun
Print_ISBN :
978-1-4577-1700-0
DOI :
10.1109/TMEE.2011.6199509
