A method for controlling gas dynamic cold spraying, the method including



providing a particle jet by using an accelerating nozzle, according to a first set of operating parameters,
illuminating the particle jet with illuminating light pulses,
capturing one or more images of the particle jet by using an imaging unit, and
determining one or more velocity values by analyzing the captured images,

wherein the method includes providing two or more sequences of illuminating light pulses during an exposure time period of a single captured image.