Abstract
The employment of forwardbackward (FB) processing to both batch and adaptive beamformers provides a superior performance than the forward only (FO) algorithm. Based on the finite-sample minimum variance distortionless response (MVDR) beamformer, a set of closed-form expressions for the variance of the weight vector, the output signal-to-interference-plus-noise ratio (SINR) and the mean-square error (MSE) is derived, for both FB and FO algorithms. As shown in our analysis, all errors of the FB algorithm are only approximately half of the FO case.
| Original language | English |
|---|---|
| Article number | 5706378 |
| Pages (from-to) | 2427-2431 |
| Number of pages | 5 |
| Journal | IEEE Transactions on Signal Processing |
| Volume | 59 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 2011 |
| Externally published | Yes |
Keywords
- Finite sample
- MSE
- MVDR beamformer
- SINR
- Wishart distribution
- forward backward
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