HU Ming, FENG Zheng-he. DOA Estimation Based on the Largest Eigenvalue for Pencil Beam Smart Antennas[J]. Acta Electronica Sinica, 2000, 28(9): 66-69.DOI:
A novel DOA estimation algorithm based on the largest eigenvalue of the covariance matrix is presented.It mainly applies to the pencil beam smart antenna in DS-CDMA systems.Different from other DOA estimation algorithms
it only picks up the main path signal of the target user.Thus it can get a high resolution with lower computational requirements.Theoretical analyses and simulation results show that this method has quite good stability and robustness
especially under severe multipath propagation circumstances.