通过变量代换和积分路径的复平面变换,将类菲涅耳型振荡积分变换为非振荡型积分,所得积分的计算时间与振荡频率成反变的关系,使得计算速度变为原来积分速度的几十到上百倍。而且,该方法所用到的仅为数学变换,几乎不存在误差,很好的解决了类菲涅耳型振荡积分问题。 Through the substitution of variables and the complex plane transformation of the integral path, the Fresnel-like oscillation integrals are transformed into non-oscillation integrals, and the calculation time of the integrals is inversely related to the oscillation frequency, so that the calculation speed becomes the original integral velocity Dozens to hundreds of times. Moreover, the method used only for mathematical transformation, there is almost no error, a good solution to class Fresnel type oscillation integral problem.