alu/ece45-project
Archived
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge pull request #42 from ltcptgeneral/MekhiTheKing-patch-1

Browse Source 
cosine function
This commit is contained in:
MekhiTheKing 2021-12-09 23:02:30 -08:00 committed by GitHub
commit 0999388910
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 25 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
src/generate_cosine.m Normal file
View File

@ -0,0 +1,25 @@
function x = generate_cosine(amplitude, frequency, phase, fs, duration, duty)
% GENERATE_WAVENAME: returns a matrix of sampled WAVENAME wave
% CONTRIBUTORS:
% Mekhi Ellington: Original Creator
% DOCUMENTATION:
% phase shift is in number of periods
% fs is the sampling frequency: how many sample points per second
% duration is time in seconds
% duty is a number between 0 and 1
% initialize local variables from input arguments
n = fs * duration; % number of samples (length of matrix)
dt = 1 / fs; % sampling period: time between two sample points
% initialize a one dimensional zero matrix to be populated
x = zeros(1, n);
% populate the matrix
for i = 1:n
t = i * dt;
x(i) = amplitude * cos(2*pi*frequency*t-phase);
end
end