FIELD: radar ranging and radio navigation.
SUBSTANCE: invention relates to passive radar, namely, to the radar thermal imaging stations (RTIS) for monitoring the surface and air conditions. Carry out surveillance of the surface or air situation using a scanning RTIS containing several antennas with different patterns of directivity (DP), which receive signals in different frequency bands, form Q radiometric image matrices according to the number of antennas, then jointly process, select the matrix Y1, corresponding to the antenna with the smallest width DP, subject matrix Y1 to recovery operations using a Wiener filter, and obtain a reconstructed image matrix X2, after which, using segmentation operations, separate matrix X2 on disjoint segments homogeneous in amplitude; for the elements of the remaining (Q-1) matrices corresponding to each segment, compute the average amplitude and form a set of the matrix X2 and (Q-1) matrices with calculated average amplitudes representing a radiometric image of the observed surface or air environment.
EFFECT: increased resolution of the radiometric image while maintaining information about the thermal characteristics of the observed objects in the frequency ranges corresponding to the different RTIS antennas.
1 cl, 4 dwg
