How to create a sine and triangle waves with frequency modulation of 0.5 Hz and peak to peak voltage is 4 V to -4 V at sample rate of 1 kHz ?

I have given a triangle and sin funtions from funtion generator but i only have information about voltage with different voltage values per cycle.

I tried to change the voltage but i couldn't do it

fs = 1000;
t = 0:1/fs:2;
x1 = sawtooth(2*pi*0.5*t,1/2);
x2 = sin(2*pi*0.5*t);
subplot(2,1,1)
plot(t,x1)
axis([0 2 -4 4])
xlabel('Time (sec)')
ylabel('Amplitude') 
title('triangle Periodic Wave')
subplot(2,1,2)
plot(t,x2)
axis([0 2 -4 4])
xlabel('Time (sec)')
ylabel('Amplitude')
title('Sine Periodic Wave')

could you please suggest me how to do it

Answer 1

[Urmila Rajpurohith]

According to my understanding if you need sine and triangle waves with peak to peak voltage 4V to -4V you can try the following lines of code

x1 = 4*sawtooth(2*pi*0.5*t,1/2);
x2 = 4*sin(2*pi*0.5*t);

and for frequency modulation you can use "fmmod" function.

Please refer the following documentation for further information:

https://www.mathworks.com/help/comm/ref/fmmod.html

[sharanya medoji]

Thank you so much for suggest and info i will try it and can i ask you again if i have any other questions is that okay?