Signal Processing Stack Exchange

1

vote

1

answer

12

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Channel equalization affect on input signal

modified 16 mins ago Dan Boschen 20.7k

0

votes

1

answer

84

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How many things can they be done with a spectrogram?

filters frequency-spectrum spectrogram

modified 34 mins ago Laurent Duval 23.5k

-1

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2

answers

18

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what is the relationship between a spectrogram and the uncertainty principle heisenberg?

fourier-transform spectrogram fundamental-frequency

modified 1 hour ago Fat32 22k

0

votes

1

answer

37

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Can I sample at Nyquist rate if I know that my samples are taken only at the signal's maxima or minima?

fourier-transform sampling fourier-series nyquist

answered 1 hour ago Antonio Minighin 1

1

vote

3

answers

75

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Use of pulse shaping in digital modulation

modulation qpsk pulse

answered 1 hour ago V.V.T 497

0

votes

0

answers

7

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Can anyone provide me the code for implementing carrier aggregation in LTE-A and LTE-A PRO

matlab lte

asked 2 hours ago user52359 1

6

votes

2

answers

481

views

Efficient calculation of correlation function every $N^{\rm th}$ point

fft autocorrelation cross-correlation ifft

modified 2 hours ago Community♦ 1

0

votes

1

answer

43

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Processing Wifi Packets

gnuradio sdr

modified 4 hours ago Community♦ 1

1

vote

1

answer

57

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FMCW Radar - Range-Doppler Plot

fft radar mimo

modified 5 hours ago Envidia 864

0

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3

answers

37

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Is there a difference in SNR between using 2x2 pixel binning in the camera and shrinking the full resolution image in software?

image-processing computer-vision scaling pixel-wise-operation

modified 7 hours ago Royi 14.2k

0

votes

0

answers

15

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SVD based noise filter

filters noise

asked 12 hours ago I.M. 115

0

votes

1

answer

23

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LPC Formant Estimation: Why resample?

filters speech-processing voice lpc

answered 15 hours ago Tom Huntington 179

9

votes

3

answers

14k

views

First order low pass filter

discrete-signals lowpass-filter z-transform bilinear-transform

modified 15 hours ago Community♦ 1

0

votes

1

answer

42

views

Produce musical signal from instantaneous frequency

audio cross-correlation pitch

answered 17 hours ago Justme 943

0

votes

1

answer

18

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How to simulate a signal of a particular frequency according to the number of points in a period of the signal?

matlab filters signal-analysis filter-design lowpass-filter

answered 17 hours ago Laurent Duval 23.5k

0

votes

0

answers

20

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How to convert bytes to video using python? [closed]

image-processing python image

modified 18 hours ago Rodrigo Franco 1

1

vote

1

answer

19

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In computed tomography (CT), why is 'Inverse Problem of Radon transform' studied?

fourier-transform inverse-problem

modified 19 hours ago Joe Mack 426

0

votes

2

answers

80

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What is the point of smoothing an FFT or spectral density plot, and how does that affect the noise floor?

fft noise power-spectral-density smoothing

modified 19 hours ago Dan Boschen 20.7k

0

votes

1

answer

25

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Variational Regularization Method in Image Processing

image-processing least-squares svd variational-methods

modified 20 hours ago Royi 14.2k

0

votes

1

answer

23

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expression for the FT of the frequency response of a system

discrete-signals fourier-transform causality

answered yesterday Engineer 1,646

0

votes

2

answers

49

views

Q format doubts

filters filter-design digital-filters dsp-core math

modified yesterday Community♦ 1

1

vote

1

answer

30

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Questions on the Generalized Tikhonov Regularization

image-processing least-squares svd

modified yesterday Royi 14.2k

0

votes

0

answers

14

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Is there anyway to find the frequency of DFT eigenvectors (basis) from its eigenvalues?

fourier-transform frequency eigendecomposition

asked yesterday user137927 279

1

vote

1

answer

10

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Recover Frame Compression Lossiness from Many Similar Frames

image-processing signal-analysis

modified yesterday Royi 14.2k

0

votes

2

answers

13

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Image Matrix Vector Representation for the Degradation Model

image-processing matlab linear-algebra

modified yesterday Royi 14.2k

0

votes

0

answers

16

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Zero Padding in image reconstruction

image-processing fourier-transform python image zero-padding

asked yesterday Arihant Baid 1

0

votes

1

answer

17

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Passband Attenuation

filters

answered yesterday Fat32 22k

1

vote

0

answers

17

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Are there any State Space Control C libraries?

control-systems c state-space

asked yesterday ClBr 11

1

vote

3

answers

77

views

Why does MATLAB's dualtree3 function not return the lowpass subband of the imaginary tree?

matlab signal-analysis fourier-transform wavelet transform

answered yesterday ashkan 73

2

votes

1

answer

488

views

Are resolution increase and noise reduction from oversampling mutually exclusive?

signal-analysis sampling denoising analog-to-digital

modified yesterday Community♦ 1

0

votes

2

answers

102

views

What algorithm can I use to “match” or “align” (translate and scale) two vectors of different size in C#?

c#

modified yesterday Community♦ 1

0

votes

1

answer

32

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Bluestein's algorithm to evaluate the DFT from $f_o$ to $f_o + k\Delta_F$

fourier-transform

answered yesterday Dan Boschen 20.7k

3

votes

2

answers

2k

views

Link between DFS, DFT, DTFT

discrete-signals fourier-transform dft nyquist dtft

modified yesterday Fat32 22k

0

votes

2

answers

40

views

Role of Power Metric and LPF in AGC(Automatic Gain Controller)

lowpass-filter feedback

modified yesterday Ben 2,273

2

votes

1

answer

38

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How virtual ads work in stadiums?

image-processing computer-vision video-processing video artificial-intelligence

modified yesterday Community♦ 1

0

votes

2

answers

29

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Design and a notch filter using two Butterworth filters in parallel (MATLAB)

matlab filter-design lowpass-filter bandwidth butterworth

modified yesterday Community♦ 1

0

votes

2

answers

62

views

D/A converter with

sampling analog-to-digital digital-to-analog

answered yesterday dsp 13

-1

votes

0

answers

16

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Low-pass filter on PDM data provides data that does not have a FFT

filter-design lowpass-filter ultrasound

asked yesterday dg1271 1

1

vote

1

answer

38

views

Change the melody of human speech using FFT and polynomial interpolation

python short-time-ft

modified yesterday Community♦ 1

1

vote

3

answers

49

views

QAM Amplitude Levels

discrete-signals digital-communications modulation demodulation dsp-core

answered yesterday Engineer 1,646

0

votes

0

answers

14

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How to use cross-correlation to verify speech data and determine delay

matlab cross-correlation speech-processing delay

asked 2 days ago skrowten_hermit 195

0

votes

3

answers

68

views

DFT coefficients meaning?

fourier-transform frequency-spectrum dft

modified 2 days ago Dan Boschen 20.7k

0

votes

1

answer

39

views

What do different Cepstral or MFCC coefficients represent intuitively?

discrete-signals signal-analysis fourier-transform speech-processing cepstral-analysis

modified 2 days ago mohammad ali Humayun 1

1

vote

1

answer

105

views

Audio: How to measure dynamic range (in sense of dynamic compression/ “loudness war”)

audio dynamic-range-compression

modified 2 days ago Hilmar 16k

5

votes

2

answers

8k

views

Envelope behavior dIfference between QPSK, OQPSK and $\pi/4$-QPSK

modulation qpsk

modified 2 days ago уве вонг 11

0

votes

1

answer

51

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How many bins to include when calculating SNR from FFT?

noise power-spectral-density snr

modified 2 days ago user3308243 39

0

votes

1

answer

63

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how do I derive the system equation for a simple delay with feedback?

filters discrete-signals signal-analysis linear-systems signal-synthesis

modified 2 days ago Community♦ 1

0

votes

2

answers

38

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FEC decoder processing delays

digital-communications

modified 2 days ago Community♦ 1

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