matlab code for 11-point sequence x(n) = 10 (0.8)n , 0 ≤ n ≤ 10, determine and plot x ((n − 6))15

pls someone do post the code

Answer 1

[TED MOSBY]

Hi,

Asssuming the equations written in your question are these:

x(n)=10(0.8)^n, 0≤n≤10
x((n−6))_15

To get started you can follow the steps below:

1. Generate the original sequence:

n0 = 0:10;
x0 = 10*(0.8).^n0;

2. Place it in a length-15 frame:

N  = 15;
n  = 0:N-1;
x  = zeros(1,N);
x(1:numel(x0)) = x0;

3. Apply the circular shift. MATLAB’s built-in circshift shifts and automatically wraps modulo N. A positive shift on a row vector moves samples to the right.

k  = 6;              
y  = circshift(x,k); % y = x((n-6))_15

4. Visualize:

stem(n,y,'filled'), grid on
title('x((n-6))_{15}')
xlabel('n'), ylabel('Amplitude')

Here is more information about "circshift" : https://www.mathworks.com/help/matlab/ref/circshift.html

Hope this helps!