说明：  利用MATLAB 计算调制传递函数，在已知波前时，求解调制传递函数。
( Purpose: Calculate and Plot MTF of the Wave Aberration Function This file calculates and plots the MTF of the Wave Aberration function specified by: jmax = highest mode in Wave Aberration Expansion Wrmsj = rms Wave Aberration coefficients of modes 0 to jmax d = pupil diameter in mm lambda = wavelength in nm )