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Forming a beam (directional gain) and, sometimes, shifting the beam direction.

2
votes
1answer
Directivity pattern of a microphone array is fourier transfrom of microphone weight values. By modifying the amplitude weights, we can modify the shape of the directivity pattern. I can really see …
asked Mar 10 '15 by Kadir Erdem Demir
8
votes
2answers
In my master thesis I am trying to implement a beamformer. I've already done the delay-sum part 1 year ago. I have been told: in FIR filtering we can do FFT --> null the unwanted frequency bin --> …
asked Apr 22 '16 by Kadir Erdem Demir
6
votes
2answers
I can not understand this when I look at beamforming function above (formulas (1) and (2)). And finally why result is in $\theta$ domain how that happened ? …
asked Apr 28 '16 by Kadir Erdem Demir
0
votes
2answers
I am implementing a microphone array simulation in my thesis. My prof and many documents indicates that microphone array behaves like filters in DSP but instead time-frequency domain there exists sen …
asked Jan 23 '16 by Kadir Erdem Demir
3
votes
2answers
I am reading over and over the Section 1.2 of most understandable mic array tutorial for me . A sound wave is dependent on time and space which can be observed in the great link. But I can't unde …
asked Mar 10 '15 by Kadir Erdem Demir
0
votes
1answer
The black areas are filtered by the result of beamforming. Now I am trying to achive null steering. …
asked Feb 18 '15 by Kadir Erdem Demir