Method for deinterleaving radar pulses

A non-transitory computer program comprising executable instructions which, when executed by a computer, implement a method for deinterleaving radar pulses, each radar pulse of said radar pulses being associated with a frequency, a duration and a time of arrival, wherein the method comprises:

• implementing a first clustering algorithm to perform three-dimensional clustering of the radar pulses based on the frequency, the duration and the time of arrival associated therewith, to assign said each radar pulse to a corresponding first class,
• wherein each first class is associated with a pass of a respective radar transmitter for a given theoretical frequency and pulse duration;
• for each first class that is assigned to said each radar pulse, estimating, based on the frequency and the duration of said each radar pulse, a respective average frequency and a respective average pulse duration;
• implementing a second clustering algorithm to group all of the each first class of said each radar pulse into second classes based on the respective average frequency and the respective average pulse duration associated therewith;
• for each second class of said second classes, determining a distribution of the time of arrival of the each radar pulse associated therewith;
• implementing a third clustering algorithm to group the second classes into third classes, based on optimal transport distances between the distribution of the time of arrival of the each radar pulse that is determined, wherein each third class of said third classes is associated with the respective radar transmitter.

A device that deinterleaves radar pulses, each radar pulse of said radar pulses being associated with a frequency, a duration and a time of arrival, the device comprising:

• a processor, wherein said processor is configured to
• implement a first clustering algorithm to perform three-dimensional clustering of the radar pulses to based on the frequency, the duration and the time of arrival of said each radar pulse, to assign said each radar pulse to a corresponding first class,
• wherein each first class is associated with a pass of a respective radar transmitter for a given theoretical frequency and pulse duration;
• for each first class of said radar pulses, estimate, based on the frequency and the duration of said each radar pulse, a respective average frequency and a respective average pulse duration;
• implement a second clustering algorithm to group all of the each first class of said radar pulses into second classes based on the respective average frequency and the respective average pulse duration;
• for each second class of said second classes, determine a distribution of the time of arrival of the radar pulses associated therewith;
• implement a third clustering algorithm to group the second classes into third classes, based on optimal transport distances between the distribution of the time of arrival of said radar pulses associated therewith, each third class of said third classes being associated with the respective radar transmitter.