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2 votes
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FIR filter insufficient stopband attenuation

I was trying to reproduce, but didn't see the errors. Let's take a look at the filtered waveform We see the shape as expected but there are bunch of spikes in there. These spikes are due to the ...
Hilmar's user avatar
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2 votes

FIR filter insufficient stopband attenuation

I'm still not 100% clear but have a good idea of what's going on. I discovered that the problem lies with the test signals. These are on the following frequencies in the -16kHz to +16kHz range: ...
Deepstop's user avatar
  • 153
2 votes

MMSE is approximately zero-forcing at high SNR

Before I answer the question we need to understand the concepts involved: $\mathbf{K}_{z_k}$ is the covariance matrix of the noise plus interference for the kth data stream (excluding the ...
Ahsan Yousaf's user avatar
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1 vote

Deconvolution by Convolution

I know this is an old thread, but it's an interesting topic. The answer is yes, you can perform deconvolution by convolution. 1) In FFT deconvolution, one normally divides the spectrum of the signal ...
Mark Ravelle's user avatar
1 vote

How to understand haw many matched filters to use?

Only one matched filter is required (if it can filter complex signals), or two (if not). A receiver's front end produces two signals, one called in-phase (I) and the other called quadrature (Q). ...
MBaz's user avatar
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1 vote
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measuring delay introduced by filter

This is because you are measuring group delay which is not the causal time delay. See this existing post that demonstrates how a negative group delay can result and an intuition as to how it occurs. ...
Dan Boschen's user avatar
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