A scanning measuring radiometry complex with computer control

Abstract

For the forming of images in radiometry, the multichannel receivers with the matrix or linear feeds of the antenna aperture are used, as well as the scanning-type single-channel radiometers. The simplicity of the antenna system and the absence of the inter-channel effects, at a lesser total cost, is the advantage of the single-channel scanning radiometers. Nevertheless, the scanning radiometers, in this regard, are very critical concerning the exact spatial positioning of the antenna system over the process of scanning. To ensure a high quality of the images, a computer-controlled scanning radiometry complex is developed by the authors; both the mechanical process of scanning and the transform of the output signal into digital form are provided via computer.