Signal Processing Stack Exchange

0

votes

1

answer

840

views

Python bandpass filter - singular matrix error

modified 37 mins ago Community♦ 1

0

votes

1

answer

30

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Compression of Multivariate Phase Signals

phase pca

modified 1 hour ago Community♦ 1

0

votes

2

answers

30

views

Detrending PPG signal

python filtering

modified 2 hours ago Community♦ 1

0

votes

0

answers

10

views

How to Normalize a Power Spectral density?

power-spectral-density

modified 2 hours ago Sam Gomari 81

3

votes

2

answers

232

views

Up-converting a sinusoidal signal

modulation

modified 3 hours ago Community♦ 1

1

vote

1

answer

12

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how to convert the zeros of an odd order Chebyshev Type II from low-pass prototype?

matlab filters infinite-impulse-response chebyshev-filters

answered 5 hours ago Hilmar 24k

0

votes

0

answers

8

views

How to calculate received signal power for a Multi-User MIMO OFDM system?

digital-communications ofdm signal-power mimo

modified 5 hours ago Marcus Müller 22.4k

0

votes

1

answer

24

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How does this periodic signal look like?

signal-analysis periodic

answered 5 hours ago Hilmar 24k

0

votes

1

answer

180

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convolve to differentiate black and white colors

matlab filters convolution image correlation

modified 5 hours ago Community♦ 1

1

vote

0

answers

40

views

+50

Tikhonov Regularization for complex matrices

complex inverse-problem

modified 6 hours ago Bulbasaur 47

0

votes

3

answers

73

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Recover an OFDM signal affected by AWGN

1

vote

1

answer

474

views

Optical Flow: Method to estimate a very small displacement

image-processing optical-flow

modified 8 hours ago meduz 736

22

votes

3

answers

29k

views

What is the Gabor filter? And what are its main uses?

filters frequency gabor

modified 8 hours ago meduz 736

2

votes

1

answer

123

views

How to describe correlated noise after the signal is oversampled?

discrete-signals noise sampling

modified 8 hours ago Community♦ 1

0

votes

0

answers

18

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K-SVD Implementation Based on Measurements of signal

compressive-sensing sparsity svd k-means

modified 12 hours ago budding_scholar 1

2

votes

1

answer

24

views

Does pwelch function, in matlab, adopt already the correction factor due to the window?

power-spectral-density

modified 13 hours ago Nautilus 53

1

vote

1

answer

578

views

RMS contrast of image interpretation

image-processing

modified 14 hours ago Community♦ 1

0

votes

2

answers

1k

views

How do I measure the amount of information within an image?

image information-theory detection

answered 17 hours ago Gautam Sreekumar 101

0

votes

1

answer

335

views

Parameters of Butterworth filter that approximates the amplitude response of a Gaussian filter?

filters filter-design gaussian butterworth

modified 18 hours ago Community♦ 1

1

vote

0

answers

14

views

GNU Radio filter normalization

filter-design digital-filters gnuradio

asked 19 hours ago Moses Browne Mwakyanjala 538

1

vote

1

answer

281

views

2D DWT computation order

image-processing matlab wavelet jpeg dwt

modified 19 hours ago Community♦ 1

2

votes

1

answer

37

views

Why the frequency response is similar for different inputs?

fft

answered 20 hours ago FooAnon 50

0

votes

1

answer

147

views

How to build a simple model for voice-controlled system?

speech-recognition voice lpc

modified 20 hours ago Community♦ 1

0

votes

0

answers

10

views

Training and smoothed training in deep learning [closed]

deep-learning

asked 22 hours ago Noha 149

1

vote

2

answers

292

views

Sampling at non-uniform intervals

sampling

answered 22 hours ago sasguy 21

0

votes

1

answer

68

views

How to transform flat-field corrected spectra to those under Standard illuminant E (ideal equal energy illuminant)

power-spectral-density color

modified 22 hours ago Community♦ 1

2

votes

1

answer

170

views

Low frequency (1Hz) High pass filter

highpass-filter

modified yesterday Community♦ 1

0

votes

1

answer

12

views

Best targets to calibrate camera with long focusing distance

computer-vision camera-calibration

answered yesterday TimWescott 5,026

0

votes

1

answer

52

views

Use music-doa on CSI

music

modified yesterday Community♦ 1

8

votes

3

answers

3k

views

Why do linear phase filters have symmetric impulse responses?

filters impulse-response linear-phase symmetry

modified yesterday Diogo 11

1

vote

1

answer

158

views

How to convert multi-band Energy Time Curve (ETC) to Impulse Response (IR)?

convolution impulse-response sound amplitude acoustics

modified yesterday Community♦ 1

0

votes

1

answer

65

views

Why does a wave composed of two waves have an FFT with only one peak?

fft signal-analysis wave decomposition

modified yesterday user244717 3

0

votes

1

answer

39

views

Aritifacts of time-varying IIR filters

infinite-impulse-response digital-filters filtering

answered yesterday Hilmar 24k

2

votes

1

answer

784

views

Use of Tukey window and its effect on a graph

fft window

modified yesterday lennon310 3,480

1

vote

1

answer

208

views

about sampling frequency

sampling

modified yesterday Community♦ 1

1

vote

1

answer

154

views

Difference between applying a window to a whole signal and frames.

matlab window-functions speech-processing

modified yesterday Community♦ 1

0

votes

2

answers

66

views

How to convert an OFDM symbol to a signal?

discrete-signals sampling ofdm

modified yesterday JRE 2,057

0

votes

1

answer

36

views

Do the effects of OFDM pilot tones spacing appear in time or in frequency domain?

digital-communications ofdm channel-estimation

modified yesterday JRE 2,057

1

vote

1

answer

494

views

Bandpass filtering an audio signal with MATLAB's $\tt kaiserord$: unknown new frequency component

matlab audio filtering

modified yesterday Community♦ 1

1

vote

1

answer

40

views

How this convolution integral is solved to obtain autocorrelation function of current for shot noise?

noise convolution autocorrelation

modified yesterday UserHuffmann 25

2

votes

1

answer

49

views

How to Modulate down a hidden message after filtering base signal from audio file

modulation frequency-modulation

modified yesterday Community♦ 1

0

votes

1

answer

35

views

Pointers for digital FM synthesis

python phase reference-request frequency-modulation oscillator

modified yesterday Community♦ 1

2

votes

2

answers

364

views

filter design for ECG

noise filter-design lowpass-filter ecg

modified yesterday Community♦ 1

0

votes

1

answer

45

views

Why, for a musical instrument, the first harmonic has more power than the fundamental and last longer?

estimation sound pitch

modified yesterday lennon310 3,480

1

vote

2

answers

37

views

Parseval's Theorem for Time Domain Data with DC

discrete-signals dft math parseval

modified yesterday Hilmar 24k

0

votes

1

answer

101

views

Reconstruction of sampled band-pass signal

filters discrete-signals sampling bandpass reconstruction

modified yesterday Community♦ 1

0

votes

0

answers

21

views

Generalized likelihood ratio to Probability estimate

maximum-likelihood-estimation

modified yesterday Marcus Müller 22.4k

1

vote

2

answers

59

views

What is the $Q$ of successive Second-Order Sections of an $N$th-order Butterworth low-pass filter?

filters butterworth biquad

modified yesterday Matt L. 74.7k

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