SYNTHESIS OF ALGORITHMS FOR TRACKING OBJECTS WITH SPATIO - TEMPORAL MODULATION OF RADIATION
P. M. Yukhno
State Scientific Research Testing Institute for Technical Information Protection Problems of the Federal Service for Technical and Export Control, Voronezh, Russia
Keywords: marker, spatio-temporal modulation, tracking, Stratonovich equation, Kalman filter, TV sensor
Abstract
The problem of tracking an object equipped with a marker with spatio-temporal modulation of the emitted signal is considered. Spatio-temporal modulation is provided by both the radiation of a marker with two stationary radiators and a marker with one rotating radiator. The formal synthesis of observation algorithms is based on the use of an approximate solution of the generalized Stratonovich equation, which differs from the traditional representations of this equation by taking into account the dependence of the observation function not only on time, but also on an arbitrary number of other independent variables that allow, for example, the shape of the observed object to be taken into account. The synthesized algorithm for tracking an object with a marker having a rotating emitter actually determines the structure of a multiconnected closed tracking system using a TV sensor for the object coordinates, as well as the initial phase, frequency, and radius of rotation of the marker emitter. The correctness of the synthesis results is confirmed by simulation modeling. The synthesized algorithm provides increased noise immunity of the tracking process in the presence of several stationary interfering radiators falling into the field of view of the TV sensor.
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