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Implementing Digital Negative of Image in MATLAB
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Plotting Unit Impulse, Unit Step, Unit Ramp and Exponential Function in MATLAB
In this blog post, we will explore how to plot basic discrete-time signals in MATLAB, including the Unit Impulse, Unit Step, Unit Ramp, and Exponential Function. These fundamental signals are commonly used in signal processing and control systems.
Below is a MATLAB script that plots these four signals using the stem() function, which is used to display discrete-time signals.
t=-2:1:2;
y=[zeros(1,2), ones(1,1), zeros(1,2)];
subplot(2,2,1);
stem(t,y);
ylabel('d(n)');
xlabel('unit impulse');
n=input('Enter n values');
t=0:1:n-1;
y1=ones(1,n);
subplot(2,2,2);
stem(t,y1);
ylabel('Amplitude');
xlabel('unit step');
n=input('Enter n values');
t=0:1:n-1;
subplot(2,2,3);
stem(t,t);
ylabel('Amplitude');
xlabel('unit ramp');
n=input('Enter length of exponential seq');
t=0:1:n-1;
a=input('Enter a value');
y2=exp(a*t);
subplot(2,2,4);
stem(t,y2);
xlabel('Exponential fun');
ylabel('Amplitude');