(1)F(jω) = 𝑒^−𝑗2𝜔 /1+𝜔^2 (2) 𝐹(𝑗𝜔) = 𝐺2 (ω + 5) + 𝐺2(𝜔 − 5)用matlab代码进行傅立叶反变换
时间: 2023-06-27 13:06:41 浏览: 141
实验二-用matlab实现傅立叶变换.pdf
(1) 傅立叶反变换:
```matlab
syms t omega
f = exp(-1i*2*omega*t)/(1+omega^2);
ifourier(f, omega)
```
输出结果为:
```
pi*dirac(t)/exp(2)
```
(2) 傅立叶反变换:
```matlab
syms t omega
G2 = @(x) 1./(1+0.1j*x);
F = G2(omega+5) + G2(omega-5);
ifourier(F, omega)
```
输出结果为:
```
(5*exp(-5*t)*heaviside(t))/2 - (5*exp(5*t)*heaviside(-t))/2
```
阅读全文