Abstract In numerical analysis, sparse grids are point configurations used in stochastic finite element approximation, integration and interpolation. This paper is concerned with the construction of polynomial interpolator models grids. Our proposal stems from fact that a grid an echelon design hierarchical structure identifies single model. We then formulate model show it can be written using ...

We designed and built a novel model of deployed space telescope which can reliably align its segments to achieve the finest possible resolution. An asymmetric design both segment shapes their pupil locations were tested in simulation experiment. optimised sparse aperture for better spatial frequency coverage smoother images with less artifacts. The unique allow an easier identification alignmen...