The Imaging Precision Analysis of the Distributed SAR System

A more precise height imaging model of the distributed SAR system according to the eccentricity of earth is established. For convenient to analyze the effect of the different parameters of the distributed SAR system on the height imaging precision, the sensitive coefficients of the parameter measurement error are defined. By numerical simulation, we find that according to the same error of parameter measurement, the different visual angle θ and azimuth angle α have the most effect on the height imaging precision of the system, when the visual angle θ and the azimuth angle α is equal the error of the parameters can have the minimal effect on the height imaging precision on the distributed SAR system.