Differential beamforming, which measures the spatial derivatives of the acoustic pressure
field, can be used in a wide range of small devices that require high-fidelity sound and …

Differential microphone arrays (DMAs) can achieve high directivity and frequency-invariant
spatial response with small apertures; they also have a great potential to be used in a wide …

This letter is dedicated to the design of fully steerable linear differential microphone arrays
(LDMAs). We analyze the steerable ideal spatial responses and explain why conventional …

We present a spatial filtering approach to first-order steerable Differential Microphone Arrays
(DMAs) with arbitrary planar geometry. In particular, the design of the spatial filter is based …

Differential microphone arrays (DMAs) often encounter white noise amplification, especially
at low frequencies. If the array geometry and the number of microphones are fixed, one can …

This letter deals with the problem of differential beamforming with microphone arrays of
arbitrary planar geometry. By approximating the beampattern with the Jacobi-Anger …

Differential Microphone Arrays (DMAs) are of great interest in the literature on small-sized
microphone arrays, due to their good directivity properties and nearly frequency-invariant …

This paper investigates the problem of designing differential beam-formers with planar
microphone arrays to achieve not only the desired target directivity pattern but also control …

This letter provides new insights into the minimum mean square error (MMSE)-based
frequency-invariant beamformer with the uniform circular array (FIB-UCA). By exploiting the …

Both the null-constrained method and the Jacobi-Anger expansion method are commonly
adopted to design the fully steerable circular differential microphone arrays (CDMAs). So far …