Top new questions this week:
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I am an undergraduate electronics engineering student taking a signal processing course this semester.
I have learned a lot of theoretical things in my lectures, such as how to shift or fold a signal, ...
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For which values of step size $\alpha$ is LMS filter stable? I Wikipedia information on this question is incorrect.
For data sampled from zero-centered Gaussian in $d$-dimensions with identity ...
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Suppose there's a vector of $d$ of positive numbers $x(1),\ldots,x(d)$ which I need to obtain from a vector of $d$ derived quantities $m(t_1),\ldots,m(t_d)$ where $\{t_i\}$ is some conveniently chosen ...
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I'm trying to make sense of different notations used in DSP. This is sometimes quite hard since notation brackets like in x[n] are used both to denote a single value or a sequence.
In mathematics, the ...
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Suppose we need to double the sampling rate of an audio signal.
Is adding a mean point between every two points a valid way of upsampling? If no, then why not?
For example, in images, pixels may be ...
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From what I know noise-canceling headphones generate sound waves that are 180° out of phase with the ambient noise. I understand that they are not effective at canceling out sudden and unpredictable ...
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I am trying verify the noise floor returned by Matlab sinad(). I am able to get the results matching by summing power spectrum density with $\frac{f_\text{s}}{N}$. ...
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Greatest hits from previous weeks:
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Over on the TeX stackexchange, we have been discussing how to detect "rivers" in paragraphs in this question.
In this context, rivers are bands of white space that result from accidental alignment ...
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Say $f$ is a signal of time $t$, $F$ its Fourier transform of the variable $v$.
It is known that in polar coordinate, $|F(v)|$ tells us how much the frequency $v$ is present over the signal, and $Arg(...
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I've found on multiple sites that convolution and cross-correlation are similar (including the tag wiki for convolution), but I didn't find anywhere how they differ.
What is the difference between ...
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I have read many articles about DTFT and DFT but am not able to discern the difference between the two except for a few visible things like DTFT goes till infinity while DFT is only till N-1. Can ...
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I have a question about matched filtering. Does the matched filter maximise the SNR at the moment of decision only? As far as I understand, if you put, say, NRZ through a matched filter, the SNR ...
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I'm studying some DSP and I'm having trouble understanding the difference between phase delay and group delay.
It seems to me that they both measure the delay time of sinusoids passed through a ...
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Hi i'm a beginner in signal processing i want to know what'sthe pass band ripple and stop band attenuation of a digital filter ?
Thanks.
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Can you answer this question?
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I am considering an energy signal in MATLAB as I am going through the book Signals and Systems Laboratory with MATLAB by Alex Palamides.
My Matlab code is below:
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