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Ngoc Lam


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Professional Interests: signal processing,

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MATLAB Answers

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Réponse apportée
somethings wrong with LPF filter?
as you can see, the filter does not effect to the signal after multiplying, anyone can help me? thanks

plus de 11 ans il y a | 0

Réponse apportée
somethings wrong with LPF filter?
with these picture was specified below: 1. the origin sine wave <</matlabcentral/answers/uploaded_files/22023/sin_init.PNG...

plus de 11 ans il y a | 0

Question


somethings wrong with LPF filter?
Hi all, I want to simulate a LPF Filter with parameters: fc=5Khz,Fs=20.5Khz, N =30, Hamming window. so I initialized a sine ...

plus de 11 ans il y a | 2 réponses | 0

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Réponse apportée
define frequency of signal from fft output
Do you know the meaning of the symmetry of spectrum when we plot spectrum of signal? i thought that It's the negative spect...

plus de 11 ans il y a | 0

Réponse apportée
define frequency of signal from fft output
Ah, I have no pay attention to Nyquyst sampling theorem aplied here! I have solved my problems, thanks for your help!

plus de 11 ans il y a | 0

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define frequency of signal from fft output
thanks for your opinions! it's helpful for me! But I have a trouble with using fft for analysing spectrum of signals. for exam...

plus de 11 ans il y a | 0

Question


define frequency of signal from fft output
<</matlabcentral/answers/uploaded_files/18706/spectrum.PNG>> what is the relationship between the sampling frequency Fs and f...

plus de 11 ans il y a | 5 réponses | 0

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