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matlab code for taking very less sample

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Tankeswar Kumar
Tankeswar Kumar 2013-2-20
I have to take a few samples from a sinusodial signal.I have generated sinusodial signal using sin. But i am unable to write the matlab code to take very less samples from that sinusodial signal.please help............

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Oleg Komarov
Oleg Komarov 2013-2-20
编辑：Oleg Komarov 2013-2-20
You might find the getting started guide very useful, second and third chapters are a good investment.
% Sample data
x = 1:100;
y = sin(x);
% Take every 10
y(1:10:100)

更多回答（2 个）

Azzi Abdelmalek
Azzi Abdelmalek 2013-2-20
If you have a Signal Processing toolbox, you can use downsample function
Image Analyst
Image Analyst 2013-2-20
Try this on the signal you have generated to take every 5th sample:
subSampledSignal = yourSignal(1:5:end);
Adapt as needed.

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