Abstract
Beamforming and DOA estimation for multiuser are discussed in multipath circumstance. Decorrelating detector is adopted to detect multiuser. CSS(Cyclic Spatial Smoothing) algorithm is presented. The algorithm with spatial smoothing can keep array weight dimension unchanged. Its theoretical foundation is that cyclic propagation of the sampling signal covariance inverse matrix is equivalent to averaging of the covariance matrix. The estimated spatial signature is adopted to construct the covariance matrix for high resolution DOA estimation. The simulation results show that CSS has better performance for multiuser beamforming.
| Original language | English |
|---|---|
| Pages (from-to) | 1499-1505 |
| Number of pages | 7 |
| Journal | Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology |
| Volume | 24 |
| Issue number | 11 |
| Publication status | Published - Nov 2002 |
Keywords
- Beamforming
- DOA estimation
- Decorrelating detector
- Multipath
- Spatial smoothing