Here is the FMCW signal represented by the linear chirp in matlab

FMCW=sin(fo*2*3.1416.*t+kf/Tsw*fm);

Tsw=Ts*n

Ts=5e-13

n=5000

t is the time

fo is the initial sweep frequency at which the chirp starts

kf/Tsw represents the rate at which the frequency changes with time where

f1 is the final sweep frequency at which the chirp stop over the sweeping period Tsw

How about FSCW radar Signal generation in matlab?