The correlation of visibilty noise and its impact on the radiometric resolution of an aperture synthesis radiometer

Abstract—The correlation between the visibility samples ’ noise of an aperture synthesis radiometer are required for the computation of the re-covered temperature noise of a given pixel and of the improvement intro-duced by baseline redundance. A general expression for this correlation and noise examples for a linear array are presented. Index Terms—Microwave radiometry, microwave receivers, radio inter-ferometry, radiometry, remote sensing, synthetic aperture imaging. I