Top new questions this week:
|
|
I intend to pursue a PhD program in digital signal processing (DSP). However, it seems nowadays that research has saturated in DSP and it's all about machine learning and deep learning. Are there are ...
|
|
While processing digital images in the Fourier domain, mostly we exploit the amplitude and not the phase. This could be because the amplitude is much more structured and the amplitude spectrum reveals ...
|
|
So I need to make a function that will be called as function [t, pulse] = PAM (array). My function should have a result like this when I use ...
|
|
I would like to modelize my whole system into the S-domain. This is a mixed system, there a numerical part (corrector, ADC, DAC) and an analogic part (plant transfer function, sensors, etc...). I know ...
|
|
As the sampling theorem dictates that the uniform sampling frequency must be at least twice the maximum frequency present in the bandlimited signal (Nyquist rate), a question arises about the ...
|
|
Will the integral of the PSD of a down-sampled signal still equal the variance in all cases
|
|
According to my very rudimentary understanding of the ITU-R BS.1770 standard, I thought that the LUFS (LKFS) value for any audio signals should not ever go positive.
However, there is a 5-second ...
|
Greatest hits from previous weeks:
|
|
I'm wondering what basic characteristics of shadows are. I'm looking from a camera image/video processing point of view. I'm considering the case of an outside scene in direct sunlight.
These are the ...
|
|
According to the cross-correlation theorem : the cross-correlation between two signals is equal to the product of fourier transform of one signal multiplied by complex conjugate of fourier transform ...
|
|
I have trouble distinguishing between these two concepts. This is my understanding so far.
A stationary process is a stochastic process whose statistical properties do not change with time. For a ...
|
|
In MATLAB I have to pass cut-off frequency for designing a filter. But this Cut-off frequency is in radians-per-sample. How do I convert my analog Cut off frequency in $\textrm{Hz}$, into the required ...
|
|
The classical definition of orthogonality in linear algebra is that two vectors are orthogonal, if their inner product is zero.
I thought this definition might be applied to signals as well, but then ...
|
|
This has been one of the holes in my cheddar cheese block of understanding DSP, so what is the physical interpretation of having a negative frequency?
If you have a physical tone at some frequency ...
|
|
I have a transfer function $$H(z)=\frac{1+1.2z^{-1}+0.8z^{z^-2}}{1-0.9z^{-1}}$$ from which I'm supposed to sketch the magnitude and phase response. I know that you can transform $z=e^{j\omega}$ to get ...
|
Can you answer these questions?
|
|
Problem statement: Assume that the spectral estimation for an unknown signal is given by the Blackman-Tukey method as follows:
$$ S_x(\omega) = 5+8\cos(\omega)-6\cos(2\omega)+2\cos(3\omega).$$
Assume ...
|
|
Suppose we have a discrete input waveform (with sampling frequency Fs = 32*56e9). We want to filter this waveform with a filter that has two complex conjugate poles (at 22 GHz) and one zero (at 17GHz) ...
|
|
I am currently working on some noise removal algorithms and have come across what seems to be an oversight in the design of some of these algorithms.
Two of the algorithms I am looking at use the PSD ...
|
