Gaussian pulse on gnuradio

Attachment: gaussian_pulses.png (13,9 KB)

hi everyone,

I have a project which is about implementing a distance measurement
equipment on gnuradio-USRP.
I am a newbie, i don’t know from where to begin exactly. The system
mainly consists on transmitting a pair of gaussian pulses modulated in
AM. So i want to know how to create this analog pulses in gnuradio.
I have looked to some tutorial for modulation but my problem is the
gaussian pulses.
Also, I know that gnuradio deals with digital data so i am really
blocked.
There is a picture of the pulses that i want to generate.
I will be so grateful for your help.

Thank you