TY - JOUR T1 - Soft blocking of the dc term in Fourier optical systems JO - Optical Engineering UR - https://doi.org/10.1117/1.601854 PY - 1998/01/01 AU - Gregory DA ED - DO - DOI: 10.1117/1.601854 PB - SPIE-Intl Soc Optical Eng VL - 37 IS - 1 SP - 49 EP - 49 Y2 - 2026/02/04 ER -