Method and apparatus for localization of an acoustic source and acoustic beamforming

An apparatus, comprising:

• an input node configured to receive from an array of receivers samples of a signal that propagates in a direction;
• and
• a computing circuit coupled to the input node and configured
• to transform the samples into a value in a temporal-frequency-spatial-frequency domain, and
• to determine the direction in response to the value.

A system, comprising:

• an array of antenna elements configured to receive a signal that propagates in a direction;
• a sampler coupled to the array and configured to generate sets of samples of the signal, each set corresponding to a respective one of the antenna elements;
• and
• a computing circuit coupled to the sampler and configured
• to transform the sets of samples into a value in a temporal-frequency-spatial-frequency domain, and
• to determine the direction in response to the value.

A method, comprising:

• receiving with each receiver of an array a respective version of a first signal that propagates in a first direction;
• generating first samples of each version of the signal;
• determining from the samples a value of spatial frequency as a function of temporal frequency;
• and
• determining the direction in response to the value.

A non-transitory computer-readable medium storing instructions that, when executed by a computing apparatus, cause the computing apparatus, or a circuit under control of the computing apparatus:

• to generate samples of each version of a signal that propagates in a direction, each version having been received with a respective element of a receiver array;
• to determine from the samples a value of spatial frequency as a function of temporal frequency;
• and
• to determine the direction in response to the value determining from the samples a value of spatial frequency as a function of temporal frequency;
• and
• determining the direction in response to the value.