Abstract
A broadband beamspace adaptive beamforming structure for rectangular arrays is proposed. A set of frequency invariant beams are formed pointing to different directions and only one weight is attached to each of the beam outputs. Due to the greatly reduced number of adaptive weights, the system can achieve a much faster convergence speed. Compared to the existing broadband beamspace adaptive methods, the advantage of the proposed method is that there is no temporal processing of the received sensor signals, such as the tapped delay-lines or IIR/FIR filters. Therefore it is a system employing spatial-only information.
| Original language | English |
|---|---|
| Title of host publication | 5th IEEE Sensor Array and Multichannel Signal Processing Workshop, 2008 |
| Publisher | IEEE |
| Pages | 330-334 |
| Number of pages | 4 |
| ISBN (Print) | 978-1-4244-2240-1 |
| DOIs | |
| Publication status | Published - Jul 2008 |
Keywords
- adaptive signal processing
- array signal processing
- broadband beamspace
- adaptive beamforming
- frequency invariant beams
- rectangular arrays
- sensor signals
- spatial-only information
- broadband arrays
- frequency invariant beamforming