MMW radiometric measuring complex for remote sensing of earth and water surface

Aircraft navigation based on landmarks predetermines the creation of reference maps of objects as reference points for navigation. The reference maps represent the result of synthesis from the information contained in aerial photographs of a navigational field, in digital cards of terrain and in directories of information signs of objects and enclosing backgrounds. Under information signs, it is necessary to understand quantitative radiation and reflection characteristics of objects, and also the magnitude and sign of mutual contrasts of the pointed performances of materials, earth covers and water surfaces obtained with the help of information sensors of various electromagnetic wave ranges (visible, infrared, millimeter wave,etc.), in different weather-climatic requirements, in all seasons, day and night. Thus information signs which are invariant to variations of weather requirements and other random factors are of great practical value for reference map synthesis. The information signs communities can be integrated into directories in classes of objects, surfaces, as information sensors, wavelength ranges, etc. Due to the insufficiency of quantitative radiation and reflecting characteristics of objects and backgrounds obtained by calculation using conventional models, the creation of the information signs directories is carried out experimentally with the help of a (generally multispectral) measuring complex on polygons representing a set of test covers and surfaces. This paper describes a mm-wave radiometric measuring complex to be used for this purpose