Principle of the method

The schematics bellow presents the CLEAN-T algorithm implemented in this repository.

Note

The subject is supposed in this example to be a plane but it can be any object as long as you provide its trajectory and a possible source grid sourounding it.

As depicted in the central part of the schematics, CLEAN-T is based on the used of the time-domain formulation of moving source propagation and beaforming to iteratively :

  • compute the beamforming over the given grid (or focal plan)

  • localise the maximum

  • isolate the temporal signal comming from the maximum location

  • propagate the signal to the microphones

  • substract the propagated signals to the previously stored signals

CLEAN-T Schematics

If a multi-frequency analysis is performed, the left block of the schematics is performed in order to filter each microphone signal in the moving-source related domain (thus dedopplerising, filtering and re-dopplering the signals).