Abstract

Attitude stability is a very important design parameter to synthetic aperture radar (SAR) satellite platform. The mathematical expression of distributed satellite SAR system impulse response function with attitude jitter is studied using paired echo theory. The effect of attitude stability on interferometric performance is confirmed according to the change of peak sidelobe ratio (PSLR) and integrated sidelobe ratio (ISLR). The constraint relationship is given between three-axis attitude jitter and interferometric performance. Through computer simulation, the relationship curve is obtained to verify the conclusion. The study in this paper provides an important theoretical basis for the integrated design of distributed satellite SAR system.

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