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12 votes
3 answers
691 views

Other end of Nyquist limit

Noam Bendelac
  • 11
5 votes
4 answers
992 views

Is the negative spectrum (by DFT) of a real signal "needed" to reconstruct it?

TimWescott
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1 vote
2 answers
52 views

What does convolving an image with kernel [1 -2 1] do? How is it different than convolving with the derivative kernel [1 -1]?

Cris Luengo
  • 1,147
0 votes
2 answers
83 views

How to calculate RMS of a sampled analog signal

John Bofarull
  • 151
1 vote
1 answer
65 views

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Matt L.
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2 votes
1 answer
50 views

Filter Design - Quantifying the Tradeoffs

Hilmar
  • 34.2k
2 votes
1 answer
50 views

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roygbiv
  • 71
0 votes
1 answer
72 views

Phase Response Function / Plotting in Excel (IIR Filter)

Hilmar
  • 34.2k
0 votes
1 answer
64 views

How to reconstruct original signal using IFFT after cutting past Nyquist limit

Jdip
  • 1,080
0 votes
1 answer
43 views

Conceptual clarification of Sampling theorem

TimWescott
  • 9,381
0 votes
1 answer
41 views

how to differentiate between random and impulse signals using MATLAB or python?

WDpad159
  • 35
0 votes
1 answer
52 views

What is the reason of the getting a clipped signal at the receiving end when using experimental tests

Sajjad
  • 87
0 votes
1 answer
37 views

What is the meaning of the small power of the signal at the receiving end

TimWescott
  • 9,381
2 votes
1 answer
36 views

Applying Kaiser Window to sinc interpolation

a concerned citizen
  • 1,658
1 vote
1 answer
34 views

How do I estimate possible aliased frequencies in sampling limited measurements?

Hilmar
  • 34.2k
0 votes
1 answer
43 views

Frequency probabilities from Fourier transform

lennon310
  • 3,550
0 votes
1 answer
47 views

Reconstructing Signal with Sinus-Waves

lennon310
  • 3,550
0 votes
1 answer
34 views

Minimum bandpass bandwidth?

Hilmar
  • 34.2k
1 vote
1 answer
41 views

Lower bound on information or entropy?

Hilmar
  • 34.2k
2 votes
1 answer
39 views

Generating signal in a different frequency band than another signal but transmitted at the same time

Hilmar
  • 34.2k
2 votes
0 answers
36 views

What would be the fundamental period of this discrete-time signal?

Caporal Fourrier
  • 121
0 votes
0 answers
35 views

co-channel interference

mary
  • 1
0 votes
0 answers
33 views

signal in baseband

user64699
  • 1
0 votes
0 answers
33 views

Input-output Pair Implications for System Properties [closed]

Donya
  • 1
0 votes
1 answer
32 views

Measurement of blocking artifacts in images

bananaconda
  • 1
1 vote
0 answers
30 views

MSK modulation and doppler shift

user64729
  • 11
-1 votes
0 answers
27 views

How is pitched changed using phase vocoder?

BigChungus443
  • 29
0 votes
0 answers
27 views

Z transform and convergence domain

user64713
  • 1
0 votes
0 answers
26 views
+50

BER result in MATLAB

Rory
  • 51
0 votes
1 answer
25 views

Window gain factor and amplitudes in FFT

robert bristow-johnson
  • 17.1k
1 vote
0 answers
22 views

Pitch successfully changes with Phase Vocoder, but there's an issue

BigChungus443
  • 29
1 vote
0 answers
20 views

"Instantaneous impulse response" in an linear time-varying system

XYZT
  • 279
0 votes
0 answers
20 views

How to get frequency axsis from pythnon CWT

Fearless_Wolf
  • 15
0 votes
0 answers
19 views

Is using Quadrature Demod for MFSK demodulation a good idea?

Thomas
  • 103
-1 votes
0 answers
18 views

path loss in Los and NLos environment

mary
  • 1
0 votes
0 answers
15 views

intercell interference

mary
  • 1
0 votes
0 answers
14 views

How can I add two signals with two different symbol durations using a common summation?

Math_Novice
  • 23
0 votes
0 answers
13 views

How to apply a filter that prevents aliasing when reindexing a dataframe to a new datatime index

Jokerp
  • 113
0 votes
0 answers
13 views

digital low pass filter time constant and the number of datapoints acquired

Blackwidow
  • 101
0 votes
2 answers
13 views

Why does varying n_fft change the range of x axis values when plotting STFT?

Jdip
  • 1,080
0 votes
0 answers
11 views

How to read from mp3 in chunks/buffers

Steven Schaefer
  • 101

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