Signal Processing Stack Exchange

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Symbol timing recovery in Python

asked 10 mins ago Python 15

0

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0

answers

2

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Fourier transform of data sampled on subgrids

fft fourier-transform nonuniform

asked 17 mins ago jfeis 1

1

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1

answer

47

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Adding phase noise to a signal results in amplitude variation on a constellation - whats the mistake? plots inside

fourier-transform phase modulation frequency-response oscillator

modified 34 mins ago Villere_DSP 11

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0

answers

11

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Understanding the units of wavelet time & frequency resolution

wavelet time-frequency resolution cwt

modified 35 mins ago SungJun Cho 1

3

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4

answers

128

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Amplitude of the fft is less than what is expected

fft amplitude tone-generation

answered 1 hour ago David 2,427

0

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0

answers

17

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How to take into account phase differences when doing Fourier Transform?

discrete-signals fourier-transform frequency

modified 1 hour ago explodingfilms101 101

0

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1

answer

11

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How do we impose Hermitian Symmetry in optical OFDM?

ofdm

answered 2 hours ago Marcus Müller 21.7k

0

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1

answer

26

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Possible RF Mixing for Increasing Frequency of a Pulse Train

fourier-transform

modified 2 hours ago Karakoncolos 98

3

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2

answers

65

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periodic noise detection in image's frequency domain

image-processing fft noise

modified 2 hours ago Bob 732

0

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1

answer

14

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Seemingly no division operation is done of the diagram of the transfer function

transfer-function

modified 3 hours ago MBaz 11.8k

0

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0

answers

16

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Is there a good metric to compare character images by similarity?

image-processing distance-metrics

modified 3 hours ago hotpaw2 32.1k

1

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0

answers

22

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Matlab: Could anyone suggest why Iam getting a different geometry for QPSK constellation diagram

digital-communications qpsk mimo constellation-diagram

asked 8 hours ago GS_123 11

2

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4

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111

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$\int_{-\infty}^{+\infty} |G(f)| \,e^{j2\pi ft}df=|g(t)|$?

fourier-transform continuous-signals

modified 9 hours ago MimSaad 1,702

7

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2

answers

30k

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Removing noisy lines from image - opencv - python

image-processing python opencv

modified 9 hours ago Jerry 1

-1

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2

answers

108

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How do I make a two pole filter with resonance

lowpass-filter

answered 12 hours ago Edward Eddy67716 11

0

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1

answer

71

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Sampling with an alternating phase offset

fft fourier-transform sampling quadrature

modified 12 hours ago Dan Boschen 25.1k

0

votes

1

answer

21

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Number of antenna to perform MUSIC algorithm

signal-detection music spectrum-estimation

answered 12 hours ago ZR Han 794

0

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1

answer

47

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Improving Main Lobe Width of FFT

fft sampling sparse-model

modified 12 hours ago Community♦ 1

0

votes

1

answer

31

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Help identifying filter

filters filtering

modified 13 hours ago Dan Boschen 25.1k

3

votes

1

answer

77

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Error probability for orthogonal signaling with unequal symbol probabilities

signal-analysis digital-communications modulation

modified 14 hours ago Dilip Sarwate 17.2k

0

votes

1

answer

34

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What is wrong with this GNURadio flow graph?

gnuradio

modified 15 hours ago Community♦ 1

0

votes

0

answers

15

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differences between two L1 norm minization schemes

deconvolution sparsity sparse-model norm

asked 16 hours ago dpdp 71

0

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2

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24

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Power Spectral Density as a single number confusion

power-spectral-density frequency-domain machine-learning time-series

modified 17 hours ago Dan Boschen 25.1k

2

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3

answers

994

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How to deal with audio with different length in Audio Classification

audio spectrogram classification

answered 17 hours ago Abed Soleymani 1

0

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1

answer

31

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minimal signal window size (length)

window

modified 18 hours ago Community♦ 1

0

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0

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13

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Trying to implement matlab pwelch function in python using scipy welch

matlab python power-spectral-density statistics scipy

asked 19 hours ago Peadar O Donnell 1

0

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1

answer

64

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How can you perform echo cancellation on features of audio signals?

discrete-signals signal-analysis speech-processing

modified 20 hours ago Community♦ 1

0

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0

answers

10

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Simulation of images of a fluorescent bead

image-processing

asked 21 hours ago mlogm 1

0

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1

answer

30

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Fixed point saturation and round

fixed-point

modified 22 hours ago Hilmar 21.1k

0

votes

0

answers

20

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Are there any general heuristics for Kalman filter noise parameters

kalman-filters unscented-kalman-filter

asked 23 hours ago user2133814 101

0

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2

answers

20

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Is it possible that the value of a continuous mother wavelet at origin is zero, i.e. $\psi(t=0)=0$?

continuous-signals wavelet

answered 23 hours ago OverLordGoldDragon 1,045

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1

answer

20

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Signal deconvolution from exponential and linear tail

deconvolution

answered 23 hours ago Hilmar 21.1k

0

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1

answer

24

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Frequency domain filtering: must filter coefficients always be conjugate symetric?

filters fourier-transform finite-impulse-response infinite-impulse-response frequency-domain

modified yesterday Bob 732

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0

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16

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What is the unit of the color axis on a Matlab spectrogram, and bandpower?

matlab discrete-signals spectrogram short-time-ft signal-power

asked yesterday LimeAndConconut 33

1

vote

2

answers

38

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Meaning of frequency and bandwidth of a signal, despite the fact that we do not know the signal

fourier-transform frequency-spectrum continuous-signals bandwidth voice

answered yesterday Hilmar 21.1k

0

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1

answer

24

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What does Cooley–Tukey FFT algorithm calculates in order to compute DFT

fft dft c++

answered yesterday Bob 732

1

vote

1

answer

16

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SDR and amplitude modulated signals

modulation gnuradio sdr

answered yesterday MBaz 11.8k

1

vote

1

answer

81

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Phase locked loop for three phase grid

analog-to-digital c integration pll

modified yesterday Ben 3,090

0

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0

answers

21

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Emulating tape distortion of low-level audio signals

audio audio-processing amplitude distortion

modified yesterday Reaktor4 1

0

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1

answer

15

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What is wrong with RMS and Maximum delay spread Matlab code?

matlab signal-analysis

answered yesterday Hilmar 21.1k

1

vote

1

answer

66

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How to compare 2 MFCC (compare them if they where created from same speaker)

speech-processing speech-recognition mfcc voice

modified yesterday Community♦ 1

1

vote

1

answer

41

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Digital integrator

algorithms math integration numerical-algorithms

modified yesterday Ben 3,090

0

votes

1

answer

24

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Calculate moving RMS with exponential averaging

filters modulation smoothing

modified yesterday lennon310 3,430

0

votes

2

answers

276

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how to extract a radio signal features with python?

python classification feature-extraction

answered yesterday MAK7898 1

0

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0

answers

19

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Amplitude modulation

signal-analysis audio python audio-processing amplitude-modulation

modified yesterday JRE 2,037

1

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3

answers

90

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On what it means for a system to be minimum phase

filters discrete-signals filter-design minimum-phase

answered yesterday telemeister 56

0

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2

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43

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Intuitive definition of ergodicity for random signal

statistics random-process stationary ergodic

answered yesterday Marco Stamazza 101

0

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2

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37

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What's the point of defining the signal over the whole time domain?

signal-analysis continuous-signals

answered yesterday TimWescott 4,503

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