フィルターのクリア

sine wave function

12 ビュー (過去 30 日間)
simira atraqi
simira atraqi 2012 年 3 月 28 日
Hello,
I need the function for the sine wave if
x= 4000
y= 3000
mean level = 1003
Amplitude = 3
Wavelength = 100
Thanks a lot

採用された回答

RNTL
RNTL 2012 年 3 月 28 日
what are x and y ? generally, according to your wavelength if you're talking about radio signals in free space, then the frequency of the sine is f = c/Wavelength (c=3e8). you then need to set sampling frequency, i.e fs = 5*f;
and just have sine = mean level + 3*sin(2*pi*f*[1:whatever length]/fs);
  1 件のコメント
simira atraqi
simira atraqi 2012 年 4 月 5 日
Who can I attach file here?

サインインしてコメントする。

その他の回答 (2 件)

simira atraqi
simira atraqi 2012 年 3 月 28 日
Are this correct?
x = 2; % Sets the resolution (step length), in µm, along the x-axis. y = 2; % Sets the resolution (step length), in µm, along the y-axis. z = 1; % Sets the resolution (step length), in µm, along the z-axis. xLength = 4000; % Sets the length of the surface in X. yLength = 3000; % Sets the length of the surface in Y. wavelength = 100; f = 3*sin(x*2*pi/wavelength*[1:4000]) + 1003; % The function for the sine wave with the % amplitude 3 µm and wave length of about 100 µm. Mean level is % 1003 µm.
I can not plot this function.
  1 件のコメント
RNTL
RNTL 2012 年 3 月 28 日
From your first question I understood as you need a 1-D sine wave.
What is the analytic function that describes your problem?

サインインしてコメントする。


simira atraqi
simira atraqi 2012 年 3 月 28 日
Creates a matrix describing 3D surface and print it. Thank you so much for your time.

カテゴリ

Help Center および File ExchangeDiscrete Fourier and Cosine Transforms についてさらに検索

タグ

Community Treasure Hunt

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

Start Hunting!

Translated by