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Justified practical implementation matrix radiometric systems (multibeam antennas and multichannel radiometric receivers), designed to create images of ground objects on board aircraft for various purposes. Formation of two-dimensional images in a short time exposure as possible due to the application of the matrix radiometric information sensors, and with the use of multi-channel radiometric sensors based multiplexing with separation in the form of signals using the Walsh function.

The design procedure of noise temperature of antenna - non-uniformly heated radome system, taking into account multiple reflections inside a radome wall is offered. The results of noise temperature calculations for each of partial directivity diagram of the multibeam antenna and influence of radiometric images distortions brought at it on position finding reliability of radiometric navigation systems are presented.

A class of the apodizating pupil neccessary functions (PF)s which affords non-negativity of the point spread function (PSF) or the line-spread function (LSF) has been proposed previously, and we also examine a class of the PFs which affords non-negativity and monotonic decrease of the PSF or LSF on both sides of the maximum. Such a behavior of the PSF or LSF makes it possible to suppress oscillations in the image of the extended object edge, but it increases the shift and spreading of the image edge, because these phenomena are mutually complementary.