UDC 621.396
COMPARATIVE ANALYSIS OF IMAGE RECOVERY ALGORITHMS IN TWO-CHANNEL RADIOMETER
O. N. Makarova, engineer of RTS department, RSREU; This email address is being protected from spambots. You need JavaScript enabled to view it.
Comparative analysis of objects image recovery algorithms in a dual-channel radiometer under the conditions of missed rows and matrix columns of radiometrical observations by means of mathematical modeling is made. It is shown that recovery accuracy loss due to the absence of observations in one-channel radiometer can be compensated with dual-channel processing. The aim of the research work is the comparative analysis of object image recovery algorithms on the basis of scanning radiometer dependent from the number of channels processing the received signals and observations conditions. Matrix methods and the method of Wiener filter for systems with single- and dual-channel processing with interpolation of matrix rows under observation and without it at different direction pattern width of antenna radiometer with different signal-to-noise ratios are reviewed. Modeling results confirm the possibility of recovery accuracy raise inthe conditions of missed rows and matrix columns observation with the help of parallel usage of two scanning antennas in orthogonal directions.
Key words: radiometer, dual-channel processing of signals, image recovery, radiometrical observations, recovery accuracy, recovery algorithms, passive radiolocation, signal accumulation time, millimeter range.
DOI: 10.21667/1995-4565-2017-59-1-10-14