circularly polarized signals using matlab audio

Question

sddfds sddfds 2023-8-16

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2009242-circularly-polarized-signals-using-matlab-audio

编辑： sddfds sddfds 2023-8-16

hello i would like to ask how to play circularly polarized signals using matlab and simulink audio. thanks very much.

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Mrutyunjaya Hiremath 2023-8-16

Hi, To play a circularly polarized signal using MATLAB audio, you'd first need to clarify what you mean. Typically, circular polarization is a concept related to electromagnetic (EM) waves, particularly in antennas and transmission. When we talk about audio in MATLAB, we're usually discussing pressure waves in air that we perceive as sound. Give some examples or reference.

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Mrutyunjaya Hiremath 2023-8-16

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2009242-circularly-polarized-signals-using-matlab-audio#answer_1288397

在 MATLAB Online 中打开

However, I'll provide a general approach, and you can adjust as per your exact needs.

Generate the Signal: If you're thinking of a "circularly polarized" signal in terms of audio, it might be that you're considering two signals (one for each stereo channel, let's say) which are phase-shifted.
Play the Signal: MATLAB uses the audioplayer function to play audio.

Here's a simplistic interpretation:

fs = 44100; % Sample rate
t = 0:1/fs:2; % 2 seconds duration
f = 440; % Frequency, Hz (e.g., A4 note)
% Generate a sinusoidal signal (representing one polarization)
signal1 = sin(2 * pi * f * t);
% Generate a phase-shifted signal (90 degrees here for "quadrature")
signal2 = cos(2 * pi * f * t);
% Combine them for stereo playback (left and right channels)
stereoSignal = [signal1' signal2'];
% Create an audio player object and play the signal
player = audioplayer(stereoSignal, fs);
play(player);

In this example, signal1 can be thought of as vertically polarized, and signal2 as horizontally polarized. When they're combined, they create a phase difference similar to what might be seen in circular polarization.

Again, remember that this is a very rough analogy and not a true representation of circularly polarized EM waves. If you can provide more clarity on your requirements, I might be able to give more correct information.

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

sddfds sddfds 2023-8-16

编辑：sddfds sddfds 2023-8-16

hello some examples are chua, lorenz attractors, vortices, orbital angular momentum, and chaotic oscillators and attractors. please see this reference for more information. https://www.mathworks.com/help/phased/ug/polarized-fields.html?s_tid=srchtitle_site_search_2_polarized

请先登录，再进行评论。