Abstract. The features of multi-target tracking of ground objects of natural and
artificial origin in coherent and non-coherent air-based radars are considered.
It is shown that concurrent continuous formation of the current estimates of
the coordinates of ground targets used in the navigation and aiming procedures
should be carried out taking into account carrier’s mission, munition used,
mode of ground surface monitoring, types of the targets, radar contrast,
presence or absence of target indications from the systems of a higher level of
hierarchy. Carrier’s mission determines whether the mode of operation of the
radar should be coherent or non-coherent. Advantages of using coherent mode of
the radar are evaluated. Munition in addition to the mode determines working
coordinates and accuracy requirements. Modes of ground surface monitoring used
for different types of targets dictate radically different types of radar
images and corresponding processing logic. The role of the operator in solving
the problems of multi-target tracking is evaluated. The features of all the
major stages of the tracking of ground objects are summarized: formation of
primary measurements, track initiation, measurement identification,
extrapolation and filtration (correction of extrapolation results by identified
measurements), track reset.
Key words: ground target, radar marking, multi-target tracking, real beam, focused
synthesized aperture.
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