Top new questions this week:
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Assume a bandlimited signal $X(t)$. Given that the output for this signal is $X(t/2)$, what will be the impulse response $h(t)$ of such a system?
\begin{array}{l}
X( \omega ) \ =\ \int ^{\infty ...
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My primary programming language is python. Is anyone aware of solid python libraries to simulate fixed point algorithms in python? A quick google search revealed this:
...
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In my DSP university textbook, the interpolation process is described as follows:
In order to represent a baseband signal $x[k]$ at an increased sampling rate with the same shapes of its ...
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Let's say that we have two sequences, input sequence $x(n) = [0121]$ and impulse response of a given system $h(n) = [0, 1, -1, 1]$. I need to find response of this system to given input sequence. ...
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Let $x(t) = \frac{\sin t}{t}$ and $y(t) = \frac{\sin 2t}{t}$. Is it possible to find a LTI system such that $\mathcal{T}\{x(t)\} = y(t)$? If not, what's the reason for that?
My try: Assuming ...
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I have a time-series of length N generated by the following equation:
x(1) = 0.1;
for jj =1 : 500
x(jj+1) = 4*x(jj)*(1-x(jj));
end
The functional form of the equation is x[n+1] = ...
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I was reading on my lecture slides about how to achieve diversity (i.e. transmit more copies of the same message in order to avoid its corruption; this technique may be realized by repeating the ...
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Greatest hits from previous weeks:
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How can I generate a sine wave with time varying frequency that is continuous? How can I resolve the following problem? I want a continuous graph.
I'm generating this simply like this:
for(int i = ...
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I've implemented a gaussian blur fragment shader in GLSL. I understand the main concepts behind all of it: convolution, separation of x and y using linearity, multiple passes to increase radius...
I ...
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I have an image
Is there any way of removing the bright white spots ? Please help thanks
Edit:
After operating with gaussian and then displaying using imagesc get the following output which ...
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Not sure if this is the right place to ask, feel free to move it if any other site suits this better.
Anyway I am referring to QAM modulation used in US Cable TV. I know it comes under Annex B which ...
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I was just learning about the frequency domain in images.
I can understand the frequency spectrum in case of waves. It denotes what frequencies are present in a wave. If we draw the frequency ...
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I am processing an EEG signal (2 kHz sampling frequency) from hardware and the built-in filter doesn't work as intended. FIR gives a delay, and IIR is unstable.
The signal of interest is from ...
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What is the significance of the noise covariance matrices in the Kalman Filter framework?
I am referring to:
process noise covariance matrix Q, and
measurement noise covariance matrix R
at any ...
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Can you answer these questions?
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pretty new to this concept, so do bear with me.
A linear dynamic system is described by the following differential equation:
Transfer function H(s) is calculated to be =
I've already found the ...
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PLL is typically used in carrier synchronization and its diagram is well known, consisting of a multiplier, a low pass filter, and a VCO.
In "Phase-locked Loop" at wiki ...
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In the paper , MSER is being defined. Please help me understand what is MSER and how to implement it.
The paper says,
The regions are defined solely by an extremal property of the
intensity ...
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