Microphone array-based direction of arrival for gunshot detection

Developing Classification and Localization Algorithm

ARCHITECTURE

Bandpass filters(BPF), allows frequencies in the band of 3KHz to pass through while attenuating others outside the range. ❖The following custom IP will contain the following new additions-

• First In First Out(FIFO) approach for temporary data storage at different rate of time ML model trained for Sound classification. And to estimate the type of gun.
• Localization algorithm approaches -Hexagonal Arrangement-of microphones such that each detects sound on different time intervals TDOA(Time Difference of Arrival)is calculated, forming hyperbola which intersects with each other pinpointing gunshot location , 99.99percent accuracy.[d12=vΔT12] [√(x−x1 )2+(y−y1 )2+(z−z1 )2−√(x−x2 )2+(y−y2 )2+(z−z2 )2=vΔT12]
• Calculate delta,i.e difference between source and the microphones arranged in Linearfashion,the six outputs can then be compared.

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to update tests as appropriate.