Mitigating Keystone-Induced Aliasing in Imaging Spectrometers via PSF Engineering

In 30 seconds

A PSF engineering framework is introduced to mitigate spectral aliasing caused by keystone distortion in imaging spectrometers. Rather than relying on simple defocusing, the technique homogeneously suppresses high spatial frequencies to ensure robust performance across the spectral field. This methodology significantly reduces systematic artifacts and improves radiometric accuracy in diffraction-limited space imaging systems.