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DOA-Estimation

★ 38 Open GitHub ↗

Direction Of Arrival Estimation recording with array of microphones using Arduino and Python

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# DOA-Estimation
In signal processing, direction of arrival denotes the direction from which a propagating wave arrives at a point, where usually a set of sensors are located. These set of sensors forms what is called a sensor array. This project aims to estimate DOA of an audio signal.

[![image.png](https://github.com/SqrtPapere/DOA-Estimation/blob/master/img/1.png)](https://github.com/SqrtPapere/DOA-Estimation/blob/master/img/1.png)

Hardware's ensamble is schematized below:

[![Screen_Shot_2017-12-08_at_22.21.33.png](https://github.com/SqrtPapere/DOA-Estimation/blob/master/img/2.png)](https://github.com/SqrtPapere/DOA-Estimation/blob/master/img/2.png)

Testing is performed emitting an audio signal (clap in the example) from various direction:

[![Screen_Shot_2017-12-08_at_22.21.54.png](https://github.com/SqrtPapere/DOA-Estimation/blob/master/img/3.png)](https://github.com/SqrtPapere/DOA-Estimation/blob/master/img/3.png)

Results shows a maximum error of 6°:

[![Screen_Shot_2017-12-08_at_22.22.24.png](https://github.com/SqrtPapere/DOA-Estimation/blob/master/img/4.png)](https://github.com/SqrtPapere/DOA-Estimation/blob/master/img/4.png)

[![Screen_Shot_2017-12-08_at_22.22.09.png](https://github.com/SqrtPapere/DOA-Estimation/blob/master/img/5.png)](https://github.com/SqrtPapere/DOA-Estimation/blob/master/img/5.png)

DOA-Estimation

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