Design Considerations For Multiple Telescope Imaging Arrays

An interferometer for high-resolution optical surveillance from geostationary orbit - space system study

“…Lecat (3) , S. Roose (3) , M.Pisani (4) , A. Cabral (5) , J. Rebordão (5) , C. Proença (5) , J. Costal (6) , P.U. Lima (6) , F.Musso (7) (1) …”

“…This is the rule to follow for the aperture configuration choice of the GEO satellite. Moreover, the final optimal interferometer sub-apertures configuration choice should be made with the analysis of the complete optical chain (from collecting optics to focal plane) that includes the optimisation of the compression ratio and the analysis of the beam disposition on the combiner (includes tolerancing of longitudinal and lateral pupil homothety) [6].…”

Beam Combination for Wide Field Imaging

“…Detailed studies [12,14,16] show that the tolerances may be very tight. The beam combination must indeed ensure lateral and longitudinal linear mapping, equality of the pupil demagnifications (each beam may have separate demagnification optics), no differential field rotation, no optical aberrations, etc.…”

“…[10][11][12]). It has been shown that a linear mapping between the entrance and exit pupils is the essential condition for an FSI combination, i.e.…”

Image registration for Fizeau Fourier transform imaging spectroscopy

“…Provided the optical path lengths through each subaperture are equal and certain design requirements are met [2], the system will operate as conventional imaging system having a pupil equal to the sum of the distributed subaperture pupil functions. Compared with a conventional optical system with pupil dimensions comparable to the dimensions of the distributed subapertures, a Fizeau interferometer can weigh significantly less and occupy a much smaller volume [3].…”