# Tag Info

## Hot answers tagged filter-design

Accepted

### Linear Phase in equiripple filters

Your filter is a linear-phase filter. There are two ways you can define the phase: \begin{align*} H(e^{j\omega}) &= \big|H(e^{j\omega})\big|e^{j\phi_a(\omega)} \\ H(e^{j\omega}) &= A(\omega)e^{...
• 90k

### Filter secondary bounces of a pulse signal

No, probably not. If your convolutional model was based on the system being excited by your input being a linear one, it is almost certain you'd see negative amplitudes on the output. Your graph doesn'...
• 30.7k

### Recover high pass filtered square wave

From an electronics point of view, your high-pass filter has strong response to the edges, so that you can just use a window comparator to restore the edges and use an edge-triggered flipflop to get ...
• 30.7k
Accepted

### How can I calculate how much of my signal at the beginning and end will be affected by the filtering process?

Evaluate the unit-sample response of your filter (by sending in [1,0,0,0,...]). The result will be the residual effect of every sample on every later sample. You can evaluate that and how many samples ...
• 51.4k
1 vote

### Recover high pass filtered square wave

I was able to recover signal by swapping a and b of my known hardware HPF. It is a bit tricky to find all parameters for the filter, but results are pretty good. It seems that recovered signal has ...
1 vote

### Linear Phase in equiripple filters

but do not posses linear phase Incorrect: they do posses linear phase. The problem is most likely with your plotting/visualization code. In order to get a good graph, you often need to zero-pad and ...
• 44.8k
1 vote

### Filter secondary bounces of a pulse signal

With the uncertainties involved, no, deconvolution is not something you could apply here. two factors: mismatch of physics and model uncertainty larger than information to the first factor: your ...
• 30.7k
1 vote

### Filtering of sampling effects

With some more researching I looked into how a polynomial can be fitted into the data and used for filtering. Asking this questions to ChatGPT resulted in using a Savitzkyâ€“Golay_filter. While the ...

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