chirp with gaussian envelope

hi all, I need to use an up chirp pulse but with Gaussian envelope. Any idea that can help me?

Answer 1

[Daniel Shub]

t = -1:0.01:1;
env = normpdf(t);
x = chirp(t);
y = env.*x;

[Mohammed]

thank you Daniel for your answer, but I need the pulse to be antipodal (for 1 the pulse>0 and for -1 the pulse<0)