Top new questions this week:
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In other words, how can I show that if we feed an energy signal to a system whose impulse response is an energy signal, the output will also be an energy signal?
I've been trying using Rayleigh's ...
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Please share an answer with a simple example from the "daily" (colloquial) lives of humans for a signal which is "continuous" and explain what is it that rigorously makes it "...
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I've succeded in implementing the uniformly partitioned convolution algorithm and now I'm looking to implement the non-uniformly partitioned version. I've had no luck with running parallel threads on ...
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My question is whether the systems below are memoryless or not:
$1.) \ y(t)=K$ where $K$ is a constant
$2.) \ y(t) = x(t_0) $ where $t_0$ is a constant
So, from the definition I have been using so far ...
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I will do voice activity detection and speech enhancement based deep neural network. However, I don't know whether to do this via matlab or pyhton. In which programming language can I find more ready-...
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I am looking forward to understand FFT more deeply. While testing with code and math I found I am having a problem in understanding two points.
First we can give to the input of FFT only $x$ or $jy$ ...
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I have the irrational transfer function
$$H(s)=\mathrm{e}^{-a\sqrt{s}}$$
With the inverse Laplace transform
$$
h(t) = \frac{a\,\mathrm{e^{-a^2/(4t)}}}{2\sqrt{\pi}~t^{3/2}}
$$
For $a > 0$
How can I ...
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Greatest hits from previous weeks:
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I understood that SNR is the ratio of signal power to the noise power. In terms of images, how the original image is affected by the added noise. In PSNR, we take the square of the peak value in the ...
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In this answer, Jim Clay writes:
... use the fact that $\mathcal F\{\cos(x)\} = \frac{\delta(w - 1) + \delta(w + 1)}{2}$ ...
The expression above is not too different from $\mathcal F\{{\cos(2\pi ...
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Below is a signal which represents a recording of someone talking. I would like to create a series of smaller audio signals based on this. The idea being to detect when 'important' sound starts and ...
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Could you please help me in a simple way, what is the first derivative of a Dirac delta function?
I found this answer:
The informal answer is a positive Delta function immediately followed by a ...
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There are nice technical definitions in textbooks and wikipedia, but I'm having a hard time understanding what differentiates stationary and non-stationary signals in practice?
Which of the following ...
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I'm reading the book
Vinay Ingle, John Proakis - Digital Signal Processing Using MATLAB® (3rd Edition) and I came across a function to shift sequences. Mathematically,
$$
y(n) = \{x(n-k) \}
$$
if $...
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For an FIR filter, with symmetrical tap values $h[N-1-n]=h[n]$,
why is the group delay $\frac{N-1}{2} T$ (where $N$ is the number of taps of the FIR filter and $T$ is the sampling time)?
Why is ...
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Can you answer these questions?
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I generate a state space model as follows (The details are not important. This part is used to get matrix A_xi and B_xi and the state space model is xi(k+1) = A_xi*xi(k)+B1_xi*u0(k); y(k) = x(k)):
<...
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I am reading a paper about the Hunt problem:
Consider the iput given by
$$e(t) = \mathrm{e}^{-\left(\frac{t-400}{75}\right)^2} - \mathrm{e}^{-\left(\frac{t-600}{75}\right)^2},\quad 0\leq t \leq 1025$$
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