how to generate a sin function of time ....

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aa 2020-9-14

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/593137-how-to-generate-a-sin-function-of-time

评论： Image Analyst 2020-9-14

采纳的回答： Image Analyst

how to generate a sine function of time with 1024 second long ... and generate 8 full cycle over this interval ....

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Answer 1

Image Analyst 2020-9-14

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https://ww2.mathworks.cn/matlabcentral/answers/593137-how-to-generate-a-sin-function-of-time#answer_494086

编辑：Image Analyst 2020-9-14

在 MATLAB Online 中打开

How many samples do you want over that 1024 seconds? Let's say it's 50,000:

numSamples = 50000;
t = linspace(0, 1024, numSamples);
period = numSamples / 8; % Want 8 full cycles
amplitude = 1; % Whatever.
y = amplitude * sin(2 * pi * t / period);
plot(t, y, 'b-', 'LineWidth', 2);
grid on;
xlabel('t', 'FontSize', 20);
ylabel('y', 'FontSize', 20);

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aa 2020-9-14

I need 1024 sample only ... I just try to run tghis code but it gives error

Image Analyst 2020-9-14

在 MATLAB Online 中打开

numSamples = 1024;
t = linspace(0, 1024, numSamples);
period = numSamples / 8; % Want 8 full cycles
amplitude = 1; % Whatever.
y = amplitude * sin(2 * pi * t / period);
plot(t, y, 'b-', 'LineWidth', 2);
grid on;
xlabel('t', 'FontSize', 20);
ylabel('y', 'FontSize', 20);