MDA
Multi-Aperture Exploitation — Radar satellite resolution – the capacity to produce clear images – can  be improved by dividing the antenna into multiple smaller antennas and using  advance-processing techniques to generate high-quality images. This technique has been proven through satellites that use an antenna  divided into two sub-apertures, such as RADARSAT-2 . The exact achievable  performance as well as potential pitfalls for the use of more than two  sub-aperture antennas are being investigated.