FM/CW noise RADAR

hi i am trying to generate the white noise signal which i want to modulate using the sinusoidal wave for the radar-target application. I used fmmod() but i am confused is this right choise. I came across fskmod() for digital signals so which one of these method is better and what is the difference?

%%%%% generation of noise wave%%%%%%%%%%%
L=1000;
MU=0;%mean
sigma=2;%standard deviation
wgn=sigma*(randn(L,1))+MU; %noise signal
figure();
plot(wgn);
xlabel('sample');
ylabel('sample values');
grid on;

fd=50; %freq dev
radarsig=fmmod(wgn,1e9,9e9,fd);% modulation
figure();
plot(radarsig);
grid on;

Answer 1

[Patel Mounika]

In Frequency modulation, both message and carrier signals are analog in nature (fmmod).

In Frequency shift keying modulation, the message signal is discrete, and the carrier signal is analog in nature (fskmod).

Therefore, according to my understanding fskmod might be better in this scenario.

Hope this helps.