Last call to make your voice heard! Our 2022 Developer Survey closes in less than a week. Take survey.
user avatar
user avatar
user avatar
Lorem Ipsum
  • Member for 10 years, 9 months
  • Last seen more than 8 years ago
156 votes
Accepted

Why is the Fourier transform so important?

46 votes

What is the physical significance of negative frequencies?

35 votes
Accepted

What's the difference between the Hough and Radon transforms?

32 votes
Accepted

What is meant by "stochastic sampling"?

28 votes
Accepted

What should be considered when selecting a windowing function when smoothing a time series?

20 votes

What are good ways to detect signal clipping in a recording?

16 votes
Accepted

Are there alternatives to the bilinear transform?

16 votes
Accepted

Why is $y(n) = x(n) + x(n-1)$ a low pass filter?

15 votes
Accepted

How do I add AWGN to an I and Q representation of a signal?

15 votes
Accepted

What are the proper pre-processing steps to perform Independent Component Analysis?

14 votes
Accepted

What are the practically relevant differences between various image resampling methods?

12 votes
Accepted

Why does my stop-band filter attenuate other frequencies?

12 votes
Accepted

How do I detect distinct objects when their edges touch each other?

12 votes

Detecting Trail in Forest Images

10 votes
Accepted

What is the difference between Remez exchange and Parks-McClellan filter design?

10 votes

Detection of a Circle in Noisy Image Data

9 votes
Accepted

Detecting a fixed template image out of a semi-constant frame of video

9 votes
Accepted

Detecting Arabic verses spanning multiple lines

7 votes

How can one improve the robustness of adaptive beamformers to signal mismatches?

7 votes
Accepted

How do I find a system's impulse response from its state-space repersentation using the state transition matrix?

6 votes
Accepted

What are the advantages, if any, of derivative sampling?

6 votes

Can ICA be applied, when the number of mixture signal is less than number of source signal?

6 votes

What is the relation between the PSDs of filter input and output called? $R_Y = |H|^2R_X$

6 votes

What is the most lucid, intuitive explanation for the various FTs - CFT, DFT, DTFT and the Fourier Series?

5 votes
Accepted

Why are there comb-like hills in a periodogram?

5 votes

Is Ideal LPF BIBO unstable?

5 votes

Calculating the PDF of a waveform from its samples

4 votes

What are the advantages, if any, of derivative sampling?

2 votes

Is it numerically more stable to implement filtering as multiplication or convolution?