ESTIMATES OF OCEAN COHERENCE TIME BY AN INTERFEROMETRIC SAR

The azimuthal resolution of the Synthetic Aperture Radar (SAR) when im aging the permanently moving ocean surface is determined by the cohere nce time of the imaged scene. The scene coherence time thus constitute s one of the major parameters in SAR imagery of the ocean. The present study shows how the direct estimate of this parameter under the actua l experimental conditions can be performed using a two-antenna interfe rometric SAR. The present results are in agreement with earlier estima tes.