E-catalog        

Библиогр.: 9 назв.

The possibility of simultaneous solution of three interrelated inverse problems: polarization direction finding of a flying ballistic object, determination of its trajectory parameters, and simultaneous determination of the coordinates of launch and expected hit points of the object. Any radio source can be used for side illumination, including nearest transmitter of TV broadcasting center. The novelty of the proposed direction finding approach is the use of the so-called vector antenna intended for simultaneous measuring all three components of the electric field strength vector of the wave reflected from the object toward the receiving point. The properties of the elliptically polarized wave, in particular, that the plane of the radiation polarization ellipse is strictly orthogonal to the wave propagation direction, provide the basis for the proposed approach. Simultaneous application of two spatially separated direction finders allows the positioning problem to be solved. The solution of all three problems in automated mode enables to issue almost instantly a target designation to system of suppression of the detected firing position and thereby to protect the protected area from unauthorized shelling.