# Get harmoniques of a real signal

バージョン 1.5.0.0 (2.1 KB) 作成者:
Given the signal x(t), the function find a0, ak, bk the amplitudes of cos and sin waves.
ダウンロード: 1.7K

ライセンスの表示

% wc,w0,a0,ak,bk,c0,ck]=get_harmonics(y,pas)
% given a signal x(t),y=x(t)
% the function get_harmoniques returns the pulse w0(rd/s) of the signal y(t)
% the coefficients ak (a1,a2,...) and bk (b1,b2,...) of the trigonomical
% representation of the signal y(t):
% y(t)= a0/2+ a1.cos(w0t)+b1.sin(w0t)+a2.cos(2w0t) +b2*sin(t*w0)+...
% it also returns the coefficients c0 and ck of the complex representation
% y(t)= ...+c(-1).exp(-jw0t)+c(0)+c(1).exp(jw0t)+c(2).exp(2jw0t)+...
% wc is the interval pulse;
% to plot the amplitude spectrum: stem(wc,abs(ck))
%[wc,w0,a0,ak,bk,c0,ck]=get_harmoniques(y,pas)
% be a signal x(t).
% For more theorical details look at www.azzimalik.com

### 引用

Azzi Abdelmalek (2024). Get harmoniques of a real signal (https://www.mathworks.com/matlabcentral/fileexchange/37654-get-harmoniques-of-a-real-signal), MATLAB Central File Exchange. 取得済み .

すべてのリリースと互換性あり
##### プラットフォームの互換性
Windows macOS Linux
##### カテゴリ
Help Center および MATLAB AnswersFourier Analysis and Filtering についてさらに検索

### Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!
バージョン 公開済み リリース ノート
1.5.0.0

Because my code which calculate the DFT is too slow, I've changed it by the built-in function fft.

1.4.0.0

when choice=2 and Y (fft of our signal) is a column, the program must change it to a line.

1.3.0.0

add a demos, and fixed coeff a0 and added a pulse interval

1.0.0.0