FMCW radar chirp signal parameter

Hi

I'm pretty new to matlab and I'm currently trying to create a chirp transmitting signal for a fmcw radar setup in simulink.

The constrains are:

• transmitting frequency f0 = 2.4 GHz
• object distance reference = 200 m
• Maximum bandwidth B = 80 MHz

I have tried using chirp blocks in simulink but the result didn't look like a chirp signal.

any help setting up the chirp signal is much appreciated : )

[John D'Errico]

If you have done something, then show what you did. Then explain why you think there is a problem. If you have nothing to show, then start writing. Asking for help is far easier when you have shown an effort, and far more likely to get useful help.

[Peter]

Hi

my mistake

here is my setup:

and the parameters for the chirp signal:

I think with this target frequency it will get pretty computational expensive

thanks for the patience

Answer 1

[Peter]

I managed to fix it

[Walter Roberson]

It would be good if you described how you fixed it?

[Peter]

I calculated a sweeptime of 7.3e-6 and made the following:

that gave me the desired signal. Although I now need to find the beat but hopefully I'll find out. Help to this is appreciated : ) thank you