Questions tagged [unit-shift]
The unit-shift tag has no usage guidance.
6
questions
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How should I interpret $z_1^{-1}$ if $z = e^{j\omega(i)T}$?
I'm trying to understand how I should create all these $z$ values.
Each $z$ values is equal to $z = e^{j\omega(i)T}$ were $j$ is the complex number (instead of $i$), $\omega(i)$ is the i:th wrequency ...
- 403
1
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1
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634
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Representing a digital ramp function in terms of unit step function
I am following a DSP course by Prof. Datta Roy which is available on you-tube. I have a concern on one of the ways he represents a digital ramp function in-terms of digital step functions. The digital ...
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129
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Discrete Time Systems with cosine()
I am trying to see if
y[n] = [cos(πn)]x[n]
is casual, stable, linear and shift-invariant.
I came up with the solution that it is not stable since it is not "...
1
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1
answer
185
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Correct SNIR computation units
I would like to know the correct units to make a SNIR computation.
I am using the following formula:
$$
\text{SNIR} = \frac{1}{\frac{1}{\text{SNR}} + \frac{1}{\text{CIR}}}
$$
I have SNR in dB and ...
- 113
1
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2
answers
1k
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Autocorrelation of a Shifted Sequence
Suppose I have a sequence $x[k]$ with $\mathcal{Z}$-transform
$$ X(z) = x_{0} + x_{1}z^{-1} + x_{2}z^{-2} + \ldots + x_{N-1}z^{N-1}$$
I know that for real-valued $x[k]$ the $\mathcal{Z}$-transform ...
1
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1
answer
562
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Unit delay operator as parameter in function
I'm busy trying to implement a filter from this paper. I'm a bit confused with one particular step (30e in the paper).
Basically I need to find the zero frequency gain (K) of the following whitening/...
- 258