Khrapchinskiy V. The steady radio imaging at the implicit discretization of observations

The solution for the relevant problem of selection of discretization of observations at the transition from their analog representation to the digital one, with minimum loss of information about an object of sensing in its digital radio imaging was obtained. It is shown that the implicit discretization of two-dimensional spectrum of signal with elements of null varieties is optimal according to its informational criterion. The method of chaotic mixing and several simpler algorithms of steady null variety radio imaging were designed out. The synthesis of weight function in reference signal of processing system of radar system with aperture synthesis at radio imaging with use of genetic algorithm, which allows decreasing the maximum value of sidelobe up to the level, which is significantly lower than the level obtained at the use of traditional methods of numerical optimization was executed. The analysis of errors concomitant with digital radio images and efficiency of evaluation of informational features represented by elements of null varieties was carried out. The obtained results can be used in correlative extreme terrain maping systems of radio navigation as well as for encoding radio images and their storage in digital format.