I have a matlab question needs help. Write a MATLAB function which outputs L sam

Question

I have a matlab question needs help. Write a MATLAB function which outputs L samples from a sinusoid of frequency f sampled at Fs. Generate 3 plots showing the generated samples for Fs = 48kHz, L = 100, and f = 2.3kHz, f = 23kHz, and f = 36kHz. Use the subplot() command to place all 3 plots in the same figure window. Label the horizontal and vertical axes of all plots and give titles for each plot with the value of f.

Task 1 (20%). Write a MATLAB function which outputs L samples from a sinusoid o frequency f sampled at Fs. Generate 3 plots showing the generated samples for Fs-48kHz, L-100, and f = 2.3kHz, f =23kHz, and f = 36kHz. Use the subplot() command to place all 3 plots in the same gure window. Label the horizontal and vertical axes of all plots and give titles for each plot with the value of f. Task 2 (20%). Use MATLAB's fft() function to find the length 64 Fast Fourier Transform of the signals generated in Task 1. Generate a figure with 3 plots corresponding to the magnitude of the FFT of each signal from Task I. Plot the irst half of the FFT with the horizontal axis scaled to be in units o rdians. Label the axes for each subplot and give titles for each figure to denote f

Explanation / Answer

inthis code frequency is interms of kilo hertzs

function sampling_1

t=-100:0.01:100;

l=100;

fs=48;

f1=2.3;

f2=23;

f3=36;

fs1=2*f1;

fs2=2*f2;

fs3=2*f3;

n1=-4:1:4;

x=cos(2*pi*f1*t);

subplot(2,2,1);

plot(t,x);

xlabel('time in seconds');

ylabel('x(t) is interms of frequency');

title('continous time signal');

x1=cos(2*pi*n1*f1/fs1);

subplot(2,2,2);

plot(t,x1);

xlabel('time in seconds');

ylabel('x1(t)');

title('plot at f=2.3khz');

x=cos(2*pi*f2*t);

x2=cos(2*pi*n1*f2/fs2);

subplot(2,2,3);

plot(t,x2);

xlabel('time in seconds');

ylabel('x2(t)');

title('plot at f=23khz');

x=cos(2*pi*f1*t);

x3=cos(2*pi*n1*f3/fs3);

subplot(2,2,4);

plot(t,x3);

xlabel('time in seconds');

ylabel('x3(t)');

title('plot at f=36khz');

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.