A leaky-wave antenna based on a rectangular waveguide with partially dielectric filling and transverse slots is investigated. A velocity factor dependencies for uniform filling and different slot lengths are presented. Also, dielectric layer thickness variations are considered. The influence of the dielectric layer position in the waveguide on the antenna characteristics is estimated. The radiation pattern is analyzed. A pattern tilt angle, an optimal antenna length and a first null beamwidth are defined.

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The use of nonlinear Markov process filtering makes it possible to restore both video stream frames and static photos at the stage of preprocessing. The present paper reflects the results of research in comparison of these types image filtering quality by means of special algorithm when Gaussian or non‐Gaussian noises acting. Examples of filter operation at different values of signal‐to‐noise ratio are presented. A comparative analysis has been performed, and the best filtered kind of noise has been defined. It has been shown the quality of developed algorithm is much better than quality of adaptive one for RGB signal filtering at the same a priori information about the signal. Also, an advantage over median filter takes a place when both fluctuation and pulse noise filtering.