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Results tagged with beamforming
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user 7483
Forming a beam (directional gain) and, sometimes, shifting the beam direction.
7
votes
Accepted
Can a narrowband beamformer be used for speech separation
Therefore narrowband beamforming won't work very well. … What you are looking for is wideband beamforming - which uses actual time delays (or linear phase shifts across frequency in the frequency domain) rather than just phase shifts. …
- 2,891
4
votes
Accepted
Beam resolution improvement of linear array using MVDR beamformer
The MVDR beamformer is an adaptive technique - the response is dependent on the the interfering signals i.e. their locations, their SNRs and their correlations. This makes it difficult to say what the …
- 2,891
3
votes
Intuitive interpretation of Fourier transform in beamforming
Book is readily availble
Introduction to Airborne Radar (Stimson) - This is more introductory and covers a lot of radar material - but it does explain beamforming in a hand wavy way. … Beamforming: a versatile approach to spatial filtering (Van Veen, Buckley) IEEE Acoustics Speech and Signal Processing Magazine, April 1988 - This gets a bit more mathematical, but it's a tutorial like …
- 2,891
2
votes
Amplify Sound From Known Direction
A good reference for the time delay beamforming is Neilson's
"Sonar Signal Processing". … A common way to true time delay beamforming is to upsample the signals, so you can form a time-delay directly. …
- 2,891
2
votes
Accepted
Calculating Beam pattern, Directivity of microphone array
For conventional beamforming (non-adaptive) the magnitude of the directivity pattern will reach a maximum when $\theta_s=\theta$. …
- 2,891