Abstract
The performance of Krylov subspace-based dimensionality reduction for adaptive beamforming is analyzed using a simple second-order Taylor series approximation to the mean output signal-to-noise ratio (SNR). It is shown that the predicted SNRs accurately follow the experimentally measured SNR and explain the threshold effects when the angles or spacing are varied between the signal mode (subspace) and interference modes (subspace). Furthermore, we discuss how the SNR approximation can be applied to calculating the deflection of a Krylov subspace dimension-reduced Capon's test statistic.
Original language | English (US) |
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Title of host publication | 2006 IEEE Sensor Array and Multichannel Signal Processing Workshop Proceedings, SAM 2006 |
Pages | 16-20 |
Number of pages | 5 |
DOIs | |
State | Published - Dec 1 2006 |
Event | 4th IEEE Sensor Array and Multichannel Signal Processing Workshop Proceedings, SAM 2006 - Waltham, MA, United States Duration: Jul 12 2006 → Jul 14 2006 |
Other
Other | 4th IEEE Sensor Array and Multichannel Signal Processing Workshop Proceedings, SAM 2006 |
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Country/Territory | United States |
City | Waltham, MA |
Period | 7/12/06 → 7/14/06 |
All Science Journal Classification (ASJC) codes
- Signal Processing
- Control and Systems Engineering
- Electrical and Electronic Engineering