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UDC 621 .396

I INFLUENCE OF ANTENNA CHARACTERISTICS OF THE RADIOMETER ON THE ACCURACY OF IMAGES RECOVERY

V. K. Klochko, head of the department of EIMM, RSREU, Ph.D.(technical sciences); This email address is being protected from spambots. You need JavaScript enabled to view it.
O. N. Makarova, engineer of RTS department; RSREU; This email address is being protected from spambots. You need JavaScript enabled to view it.

Influence of antenna system characteristics on the accuracy of objects images recovery in the radiometer is researched in the work. Antenna system represents a set of receiving elements organized by a certain rule for data obtaining. The number of accepted signals processing channels and its antenna characteristics depend on the organization of receiving elements. Antenna system scans the area of review and accepts signals in the given range of frequencies. By results of scanning in one or two spatial channels the matrixes of radiometric observations differing in antenna characteristics are created. These matrixes are jointly processed by the algorithm of images recovery, based on the optimum matrix approach. The work purpose is to compare different antenna systems defining antenna characteristics on restoration accuracy. In the work analytically and experimentally a comparative analysis of restoration accuracy depending on the organization of receiving elements in case of one and two processing channels is carried out. Analytical research is based on the creation of a covariance matrix of recovery errors, experimental – on the basis of modeling.

Keywords: radiometer, antenna system, dual-channel signal processing, recovery of images, antenna characteristics.

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