Tagged Questions
1
vote
1answer
55 views
Region of convergence of Z-Transform connected area?
Shouldn't the Region of Convergence of the Z transform be a connected area ?
In Oppenheim solution manual, I've found this answer of a question that asks to determine the different forms of the ...
1
vote
3answers
90 views
Pre–emphasis - Signal Processing
I am trying to compute the Pre-emphasis of a signal and the formular is below:
y[n] = x[n] - 0.95 x[n-1]
Let:
...
2
votes
0answers
90 views
Understanding Discrete Cosine Transformation
I'm currently working on some software and a key component is 2D DCT. But my question is more general, as I'm trying to understand the DCT in general, let's say from engineers point of view.
For ...
0
votes
0answers
338 views
Finding Fourier series with function not centered at the origin
I am trying to find both Fourier cosine and sine series which represent the function F(t) in the interval $(0, \pi)$
where $F(t)=\begin{cases}
\frac{\pi}{2} & \ \ 0<t< \frac{\pi}{2}\\
0 ...
0
votes
2answers
113 views
Z-Transform Identity
I've come across an identity and would like to know if it has some sort of formal name or derivation or explanation or something! Also, I'm curious as to whether others are aware of such an identity.
...
1
vote
0answers
197 views
Fast Walsh–Hadamard transform generalization for non-power-of-two orders?
I have to process vectors through a Hadamard matrix of order N.
If N is a power of 2, I can use the Fast Walsh–Hadamard transform; but if N is not a power of two (for instance, N=12), it is not ...
