Advanced modeling of microwave Doppler spectra and along-track interferometric SAR signatures of ocean surface currents

In contrast to conventional imaging radars, along-track interferometric (ATI) synthetic aperture radars are directly sensitive to scatterer motions, which makes them a promising tool for oceanic surface current measurements. The authors present some new model developments and theoretical predictions. The authors discuss the capabilities and limitations of current measurements by ATI and compare advantages and disadvantages of this method with those of techniques based on conventional radar imagery.