To Develop codes to simulate, and plot the results for an exponential signal

1. Develop codes to simulate, and plot the results for an exponential signal for the cases:

(a) k= 1 and a= 0.35 (b) k =1.2 and a=-0.45

Answer 1

[Arjun]

Hi @Rashi Rathi,

I see that you want to plot exponential signals using MATLAB.

Since very limited information is provided, I am assuming that your function is as follows: f(t) = k*e^(a*t)

Based on the assumption and provided parameters, the first case with "k=1" and "a=0.35" is expected to exhibit exponential growth, while the second case with "k=1.2" and "a=-0.45" should demonstrate exponential decay. This behavior should be clearly observable in the resulting plots. Please refer to the steps outlined below.

• Generate some sample time steps:

t = 1:10; % this will give t=[1,2,3,.....10] i.e we have 10 time samples over which we will calculate our functions and plot

• Calculate first signal using "exp" function for exponentiation:

signal1 = 1*exp(0.35*t);

Calculate second signal using "exp" function for exponentiation:

signal2 = 1.2*exp(-0.45*t);

Plot first signal:

plot(t,signal1);
xlabel('Time');
ylabel('Signal1');

Plot second signal:

plot(t,signal2);
xlabel('Time');
ylabel('Signal2');

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You can read more about "plot" and "exp" function from the following documentation links:

• plot: https://www.mathworks.com/help/releases/R2021a/matlab/ref/plot.html
• exp: https://www.mathworks.com/help/releases/R2021a/matlab/ref/exp.html

I hope this helps!