Influence of frequency on sub-mirror apertures and the surrounded apertures for the Golay3 sparse aperture

摘要

This paper analyzes the modulation transfer function of three sub-mirror sparse aperture optical system (Golay3) among the low contrast with the central part, the side lobe peak and the sub-mirror aperture. It is shown that the sparse aperture system can be achieved higher frequency information while the optical imaging system is designed and the side lobe is moved or low contrast of the central part is reduced or contrast of the higher frequency part is increased by changing the position of sub mirrors or size of surrounded apertures.