New answers tagged signal-energy
0
votes
Strided unpadding energy relationship?
From the comments:
Unpadding works fine if you maintain the length of the sequence. If you truncate, the signals are not bandlimited anymore hence you get aliasing: The spectra of x1 and x0 are ...
4
votes
Accepted
Calculate the energy of x[n]
It's always helpful to write down the first few elements and check if you can see the pattern. You can quickly see that $\sin(\frac{\pi}{2}n)$ is simply ...
0
votes
Is there a relationship between the energies of the inputs to a convolution and the energy of its output?
We can get exact bounds from cross-domain energy relations. Given a signal $x(t)$ and a kernel $h(t)$ to convolve with, the frequency-domain result is $X(f)H(f)$, and we know from Parseval-Plancherel'...
1
vote
Is there a relationship between the energies of the inputs to a convolution and the energy of its output?
a = ones(64,1);
b = [1 -1];
c = conv(a,b);
In this case, a and b have some non-zero energy while their convolution is exactly zero besides head and tail conditions....
3
votes
Is there a relationship between the energies of the inputs to a convolution and the energy of its output?
Probably not an equality directly, but upper bounds. Let us look at the continuous case first, which is easier to derive. There is a Young's convolution inequality: with proper integrability ...
Top 50 recent answers are included
Related Tags
signal-energy × 88signal-power × 21
continuous-signals × 15
discrete-signals × 14
signal-analysis × 11
fourier-transform × 11
frequency-spectrum × 7
power-spectral-density × 7
matlab × 6
digital-communications × 6
fft × 4
noise × 3
sampling × 3
modulation × 3
autocorrelation × 3
homework × 3
random-process × 3
stability × 3
python × 2
dft × 2
linear-systems × 2
wavelet × 2
impulse-response × 2
window-functions × 2
bandwidth × 2