MATLAB: Plotting a sin signal

MATLABsignal processing

I want to plot a sin signal which takes 1 second to complete and oscillation and has an amplitude of 1. I've tried determining the trigonometric function but I got lost. How can I plot this in MATLAB? Cheers.

Best Answer

t = linspace (0,1,100) ;
F = 1 ; % frequency (Hz)
A = 1 ; % amplitude (a.u.)
y = A * sin(2 * pi * F * t) ;
plot(t, y, 'b.-')

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MATLAB: How to plot a periodic signal f(t)= t.^3 , -pi<=t

x = linspace(-2*pi,2*pi,1000);
y = (mod(x+pi,2*pi)-pi).^3;
plot(x,y)

MATLAB: How to generate a sin function of time ….

How many samples do you want over that 1024 seconds? Let's say it's 50,000:

numSamples = 50000;
t = linspace(0, 1024, numSamples);
period = numSamples / 8; % Want 8 full cycles
amplitude = 1; % Whatever.
y = amplitude * sin(2 * pi * t / period);
plot(t, y, 'b-', 'LineWidth', 2);
grid on;
xlabel('t', 'FontSize', 20);
ylabel('y', 'FontSize', 20);

Best Answer

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MATLAB: How to plot a periodic signal f(t)= t.^3 , -pi<=t

MATLAB: How to generate a sin function of time ….

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