Estimation of radar scattering characteristics of artillery shells in meter, decimeter and centimeter wavelength ranges
Keywords:artillery shell, mathematic modeling, model electromagnetic response, secondary radiation
AbstractIt is researched the characteristics of radar secondary radiation of artillery shells of different types which are obtained by mathematic modeling. There are described in brief the electrodynamic methods developed by the paper authors allowing to model electromagnetic responses of air objects of complicated shape and different electrical dimensions. In case of a length and diameter of the shells are comparative to probing wave length (they have resonance dimensions) we use for calculation the method based on solution of integral equation of magnetic field. For simulation of the characteristics of secondary radiation of the shells with electrically great dimensions we use asymptotic high frequency method. Developed methods are verified by means of comparison of calculation data for modeled objects with the other authors’ numerous results and also with physical experiment data. There are shown the characteristics of secondary radiation of the shells in meter, decimeter and centimeter wavelength range. There are discussed main regularities of their secondary radiation in case two orthogonal polarizations and different time-frequency parameters of radar probing signal.
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