matlab实验试做数据

ide(t-1)-Heaviside(t))');Fw=fourier(Gt,t,w);FFw=maple('convert',Fw,'piecewise');FFP=abs(FFw)ezplot(FFP,[-10*pi10*pi]);grid;(3)单边指数信号symstwGt=sym('exp(-1*t)*Heaviside(t)');Fw=fourier(Gt,t,w);FFw=maple('convert',Fw,'piecewise');FFP=abs(FFw)ezplot(FFP,[-7*pi7*pi]);grid;axis([-7*pi7*pi01.2]);%坐标轴修正(4)高斯信号     symstwGt=exp(-t.^2);Fw=fourier(Gt,t,w)FFP=abs(Fw)ezplot(Fw,[-3030])grid;axis([-303002]);2、利用ifourier()函数求下列频谱函数的傅氏反变换(1) symstwFw=sym('-2*w*j/(16+w^2)');ft=ifourier(Fw,w,t)运行结果:ft=i*j*(-exp(-4*t)*heaviside(t)+exp(4*t)*heaviside(-t))(2) symstwFw=sym('((w*j)^2+5*j*w-8)/((j*w)^2+6*j*w+5)');ft=ifourier(Fw,w,t)运行结果:ft=1/2/j*(-2*i*(3*exp(-i*t/j)-2*exp(-5*i*t/j))*heaviside(t)+3*i*exp(-i*t/j)-2*i*exp(-5*i*t/j)+3*i*signum(0,Im(1/j),0)*exp(-i*t/j)-2*i*signum(0,Im(1/j),0)*exp(-5*i*t/j)+2*dirac(t)*j)