Goldberg I L, McCulloch A W
Appl Opt. 1969 Jul 1;8(7):1451-8. doi: 10.1364/AO.8.001451.
The annular aperture diffracted energy distribution in the image plane for an extended incoherent source has been calculated and tabulated for source sizes up to five times the size of the Airy disk and for annular aperture ratios up to 0.5. It is shown that for a scanning instrument an increase in the instantaneous field of view from one to two times the Rayleigh limit degrades the effective resolution by a factor significantly less than two.
对于扩展非相干光源，已计算并列表给出了像平面中环形孔径的衍射能量分布，其中光源尺寸最大为艾里斑尺寸的五倍，环形孔径比最大为0.5。结果表明，对于扫描仪器，将瞬时视场从瑞利极限的一倍增加到两倍，有效分辨率的降低因子显著小于二。
