The problem of constructing a «correct» mathematical model of the bell-shaped reaction of a scanning infrared sensor to a point object is considered. The suggested model takes into account changes in amplitude, duration and a shape of channel pulses in different situations when a light spot hits photosensitive areas. The results of computer modeling have shown low efficiency of traditional matched filtering in estimating amplitude of pulses from point objects when the sin2 function is used as a pulse model.

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The major principles ofthe vehicles speed mode control ofthe photon system structure and functioning are discussed in the paper. The image processing algorithms based upon the fuzzy logic which permit to automatically refer a given contour to a certain vehicle are proposed. Mathematical formulas to compute the speed of the vehicle as per the initial and final position in the image frame are also proposed.

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