TRACKING FILTER OF A MOVING TARGET'S SIGNAL Russian patent published in 2005 - IPC

FIELD: the invention may be used in the systems of detection, escorting and measuring of the speed of ground moving targets.

SUBSTANCE: increasing of an accuracy of filtration and antijamming capabilities is achieved by way of reducing the influence of the passive interferences, made by the targets moving on low radial speeds with uneven spectral consistence of the expected frequency range. The advantages of the declared decision may become visually apparent at tracking for a Doppler frequency and measuring of the speed of a quickly maneuvering target relocating against the background of heterogeneous formations. The tracking filter of the moving target's signal has amplifiers of an intermediate frequency(1,6), mixers (2,5,10), band filters (3,11), frequency discriminators(4,12), a control block(7), a guided oscillator(8), a generator of a doubling intermediate frequency(9), a subtraction block(13).

EFFECT: increases accuracy of filtration and antijamming capabilities of the tracking filter.

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