A Direction-of-Arrival Estimation Algorithm of Coherent Multipath Signals in Time-Varying Mobile Channel
Gang Wu · Systems engineering and electronics · 2002
Based on Fresnel-zone multiple-beam antennas (FMBA), a novel direction-of-arrival estimation (DOAE) algorithm of coherent signal in a mobile radio propagation environment is proposed in this paper. The DOAE approach, which combines subspace smoothing technique and sub-array beam-space processing, solves the limitation of maximum DOAs of spatial-processing. It also has a higher resolution and accuracy in the condition of on low SNR threshold and small snapshots is number. Finally, computer simulation is performed and results suggest that in the condition of this method has a distinguished performance. So it is applicable to mobile communication systems.