Abstract
A least squares formulation for the design of frequency invariant beamformers (FIBs) is proposed with two solutions provided. One is based on the Lagrange multipliers method and the other one is based on an orthogonal decomposition of the coefficient vector to transform the constrained design problem into an unconstrained one. Design examples including both broadside and off-broadside main beams are provided with satisfactory frequency invariant property and sidelobe attenuation.
| Original language | English |
|---|---|
| Pages (from-to) | 844-848 |
| Number of pages | 5 |
| Journal | European Signal Processing Conference |
| Publication status | Published - Aug 2009 |
| Event | 17th European Signal Processing Conference, EUSIPCO 2009 - Glasgow, United Kingdom Duration: 24 Aug 2009 → 28 Aug 2009 |
Keywords
- Frequency invariant beamformer
- Lagrange multipliers
- Least squares
- Orthogonal decomposition
ASJC Scopus subject areas
- Signal Processing
- Electrical and Electronic Engineering