close all;clear all;clc;
x=-7.5:0.2:7.5;
y=-10:0.2:10;
[X,Y]=meshgrid(x,y);
K=1;
T=2;
a=exp(j*pi*(Y-K*X).^(T-X)-K*(X.^2));
b=(pi*(Y-K*X).*(T-abs(X)))+eps;
c=(sin(b)./b).*(T-abs(X)));
Z=;
surf(X,Y,Z)