Signal Processing
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TimWescott
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221 Answers

Votes Activity Newest
10
Why does a longer observation time improve DFT resolution, but repeating a signal does not?
Mar 3 at 16:15
9
Why can't quantization noise be zero?
Jul 25 at 15:22
8
Can someone help explain what this FFT workflow is doing to my signal, and why it works?
Oct 21 '19 at 23:02
7
What are the advantages and disadvantages of Kalman filter compared with FIR, IIR and low pass filter to filter data with noise?
Sep 5 '20 at 18:54
7
Why is there no FPU on (most) DSP chips?
Dec 11 '19 at 21:14
6
How can convolution be a linear and invariant operation?
Feb 2 at 15:49
6
A question about sampling rate of cosine signal
Jan 18 '20 at 17:59
5
Why is phase range between $-\pi$ and $+\pi$ (instead of $0$ and $2\pi$)?
Apr 24 at 15:35
5
ADC sampling rate and signal bandwidth for FHSS
Mar 1 at 3:27
5
Can FFT convolution be faster than direct convolution for signals of large sizes?
Nov 6 '20 at 17:24
5
Converting Analog Filter into Digital Filter, why Bilinear Transform?
Jun 23 '20 at 17:56
5
Digital PLL loses lock every time mesage crosses zero
Oct 22 '19 at 18:25
4
Recommendation for courses / studies on digital signal processing
May 1 at 20:23
4
Why do we need to estimate eigenvalues?
Apr 10 at 16:36
4
Is this system causal or not?
Feb 8 at 22:22
4
how to find the inverse response of a system
Jan 24 at 19:48
4
Under what conditions is there a one-to-one mapping between continuous-time and discrete-time signals?
Jan 19 at 19:14
4
Filter Cascade: Additions and Multiplications per input sample
Jan 11 at 16:48
4
Using oversampling to increase resolution of a DC-signal as input
Dec 23 '20 at 16:20
4
How can initial conditions be taken into account to calculate a system's terminal value using the final value theorem or some other technique
Nov 22 '20 at 21:04
4
Can you downsample unevenly with even distribution?
Sep 14 '20 at 1:56
4
FFT showing peaks at 0Hz?
May 12 '20 at 0:56
4
signal processing vs image processing?
May 2 '20 at 20:22
4
Examples where non-linear phase filters are used
Apr 28 '20 at 14:46
4
Finding the time domain equation corresponding to a given DFT
Dec 12 '19 at 20:02
4
Is it possible to infer the characteristic curve of a recording device only from (many) recordings?
Dec 1 '19 at 17:52
4
Impulse response of a transfer function
Nov 18 '19 at 16:48
3
Effect of Resizing (Up Scaling) an Image on the Ability to Detect / Recognize Objects
Dec 13 '19 at 0:41
3
Seamless looping of a signal without pops
May 15 at 16:47
3
Understanding why (at least) 2 points of the FFT of a real signal are real
May 14 at 16:12
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