论文标题
孔的分析表达受SEIDEL畸变影响的孔径效率
Analytical expression of aperture efficiency affected by Seidel aberrations
论文作者
论文摘要
尽管畸变决定了广泛的视野系统的性能，但尚未分析畸变对孔径效率的影响。波前误差和进料模式扩展到一系列Zernike多项式中，使我们能够计算孔径效率。我们明确显示了受Seidel畸变影响的光圈效率，并得出了减少球形畸变和昏迷影响的条件。特别是，昏迷状况可以减少指向错误。我们进行了物理光学模拟，发现如果strehl比高于0.8，则衍生的表达式提供了孔径效率的精度小于2％。
The effect of aberrations on the aperture efficiency has not been discussed analytically, though aberrations determine the performance of a wide field-of-view system. Expansion of a wavefront error and a feed pattern into a series of the Zernike polynomials enables us to calculate the aperture efficiency. We explicitly show the aperture efficiency affected by the Seidel aberrations and derive the conditions for reducing the effects of the spherical aberration and coma. In particular, the condition for coma can reduce a pointing error. We performed Physical Optics simulations and found that, if the Strehl ratio is higher than 0.8, the derived expression provides the aperture efficiencies with a precision of < 2%.
