DOA Estimation Based on the Largest Eigenvalue for Pencil Beam Smart Antennas
Feng Zheng · Dianzi xuebao · 2000
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.