The influence of phase and amplitude fluctuations of microwaves in troposphere on SAR operation

An essential influence on SAR operation can be caused by both attenuation of microwaves in the troposphere, clouds and precipitations and the phase and amplitude fluctuations of SAR received signal resulting from radiowave propagation through a random inhomogeneous medium. In other words, there are deterministic and stochastic components of errors determining SAR calibration accuracy. Here we suppose that SAR external calibration using a sample reflector is performed. Besides, the considered effects influence the remote sensing data interpretation accuracy evaluation of intensity ratios for small-size objects and even large area fragments.