Signal Processing Stack Exchange

0

votes

3

answers

270

views

compression algorithm

image-processing

answered 9 mins ago Eliot Gillum 101

1

vote

1

answer

17

views

How would I go about to deconvolve an image acquired by a square detector? (see gif)

modified 4 hours ago Peter K.♦ 18k

3

votes

2

answers

38

views

Lightweight test for bimodal distributions?

statistics histogram

answered 4 hours ago TimWescott 1,148

0

votes

0

answers

7

views

Using clustering to detect anomalies in vibration data

clustering

asked 5 hours ago user159566 1

0

votes

1

answer

27

views

Finite sequence input to DTFT

fourier-transform fourier dtft

modified 10 hours ago Hilmar 13.2k

2

votes

2

answers

37

views

Is there any solution for this bandpass feedback overload problem (besides increasing sample rate)?

bandpass feedback damping

modified 11 hours ago Community♦ 1

0

votes

4

answers

55

views

Sequence expansion by zeros and interpolation - does it insert additional frequencies?

interpolation

modified 11 hours ago user7216373 1

0

votes

1

answer

21

views

Autocorrelation to diagnose faults

fft fourier-transform power-spectral-density autocorrelation

modified 12 hours ago Dan Boschen 13.8k

0

votes

1

answer

21

views

Aliasing and DTFT of a real signal

fourier-transform frequency-spectrum dtft

modified 12 hours ago Hilmar 13.2k

6

votes

2

answers

453

views

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

fft autocorrelation cross-correlation ifft

modified 15 hours ago Community♦ 1

1

vote

1

answer

253

views

Removing breaths using python

filters audio python audio-processing

modified 15 hours ago Duck Dodgers 151

0

votes

1

answer

15

views

what are the vector formats similar to hash codes to store user's voice for future voice verification?

voice sound-recognition

answered 16 hours ago A_A 8,389

2

votes

4

answers

187

views

Estimate Filter Coefficients from the Result of Linear Convolution with a Known Signal

dft convolution estimation deconvolution inverse-problem

modified 16 hours ago Royi 11.1k

0

votes

1

answer

81

views

Non Linear Remapping of the Pixel Values

image-processing pixel-wise-operation

modified 17 hours ago Royi 11.1k

0

votes

1

answer

44

views

spectral leakage for integral number of periods

window-functions

modified 21 hours ago Dan Boschen 13.8k

0

votes

2

answers

24

views

If the frequency response of a system is time-independent, is this system LTI?

linear-systems frequency-response

modified 23 hours ago robert bristow-johnson 12.8k

5

votes

5

answers

3k

views

What Is the Transfer Function of a Moving Average (FIR Filter)?

linear-systems fir transfer-function digital-filters moving-average

modified yesterday Royi 11.1k

8

votes

3

answers

10k

views

First order low pass filter

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

modified yesterday Community♦ 1

0

votes

1

answer

29

views

How CDMA receiver extract it's corresponding data from the receiving modulated & superposition-ed signal?

algorithms

modified yesterday Dan Boschen 13.8k

9

votes

1

answer

2k

views

What is an exact measure of sparsity?

sparsity

modified yesterday Laurent Duval 20.4k

0

votes

0

answers

14

views

synchronization with 2 users

digital-communications

asked yesterday user47311 1

0

votes

2

answers

22

views

Absolute value based AM envelope detection viewed in the frequency domain

frequency-domain math detection envelope amplitude-modulation

answered yesterday Gideon Genadi Kogan 212

3

votes

1

answer

73

views

Obtain I/Q Components from a Real Signal On the Fly - Hilbert Transform or Digital Downconversion?

hilbert-transform sdr quadrature analytic-signal

modified yesterday Dan Boschen 13.8k

3

votes

1

answer

589

views

What Does It Mean When Cross Correlation Between Two Images Occur at Negative Coordinates

image-processing matlab cross-correlation

modified yesterday Royi 11.1k

0

votes

2

answers

334

views

Why Is the DFT of a Signal Symmetric About Its Central Bin?

fourier-transform dft

modified yesterday Royi 11.1k

4

votes

1

answer

679

views

$1/n$ octave complex smoothing

fft audio smoothing

modified yesterday Community♦ 1

0

votes

1

answer

33

views

ADC sampling rate implications Matlab/Simulink M-PSK modulation

sampling downsampling qpsk bpsk adc

modified yesterday Community♦ 1

0

votes

2

answers

31

views

Channel noise - A misnomer?

noise gaussian signal-power

answered yesterday Engineer 832

0

votes

1

answer

22

views

How to allign audio signals after DTW?

python interpolation synchronization

answered yesterday A_A 8,389

0

votes

1

answer

458

views

Sample Dataset for Kalman Filter

kalman-filters estimation

modified yesterday Community♦ 1

0

votes

1

answer

22

views

Step-by-Step calculation of stationary wavelet transform gives shifted results?

filters signal-analysis convolution wavelet

modified yesterday Lutz Lehmann 952

0

votes

0

answers

565

views

How do I find the peak frequency of a wav file in python?

fft python frequency

modified yesterday Nair 1

0

votes

1

answer

32

views

Fourier transform of a noisy signal

fourier-transform noise sensor

answered yesterday Gideon Genadi Kogan 212

3

votes

3

answers

703

views

Spectral Leakage in layman's terms

fourier-transform dft

answered yesterday earlevel 114

1

vote

1

answer

56

views

Object Tracking with Improved Detector of Objects Similar to Target

filters tracking visual-tracking particle-filter

answered yesterday deathiscertainlifeisnot 51

1

vote

0

answers

50

views

Choosing Right Type of Filter for time series data

filters lowpass-filter kalman-filters digital-filters

asked yesterday Rheatey Bash 133

0

votes

1

answer

35

views

Choosing right cut-off frequency for a LP filter in upsampler

matlab filters sampling

answered yesterday Dan Boschen 13.8k

0

votes

1

answer

21

views

Change phase of the output of a buffer

homework

modified yesterday Dan Boschen 13.8k

0

votes

0

answers

9

views

Measure that Compares an Actual Old Document from a Synthetic Old Document

image-processing image measurement histogram image-restoration

asked yesterday Alyssa Gono 111

1

vote

1

answer

314

views

Are resolution increase and noise reduction from oversampling mutually exclusive?

signal-analysis sampling denoising adc

modified 2 days ago Community♦ 1

0

votes

2

answers

72

views

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

c#

modified 2 days ago Community♦ 1

0

votes

0

answers

17

views

Capacity frequency selective channel: basic in computation

digital-communications mimo capacity

modified 2 days ago Marcus Müller 14.5k

0

votes

1

answer

50

views

How do I normalize a predesigned IIR filter?

infinite-impulse-response normalization

answered 2 days ago Matt L. 58k

1

vote

1

answer

71

views

How do I convert a sampled complex signal to a real signal?

sampling hilbert-transform

modified 2 days ago watkipet 115

3

votes

5

answers

1k

views

A question about sampling rate of cosine signal

sampling frequency nyquist cosine

modified 2 days ago John_Ha 31

0

votes

0

answers

46

views

Removing DC Offset (via removing mean) of input and output signals affects their coherence

matlab fft power-spectral-density normalization coherence

modified 2 days ago Jack 1

0

votes

0

answers

27

views

ADSR parameter identification from envelope data

signal-analysis python machine-learning linear-prediction envelope

modified 2 days ago Mikołaj Kaczmarek 1

0

votes

1

answer

18

views

Smoothing a discrete function with point wise variances

discrete-signals smoothing

answered 2 days ago Hilmar 13.2k

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