Hottest Questions This Week

9

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2

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2k

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Does the Nyquist frequency of the Cochlear nerve impose the fundamental limit on human hearing?

modified Apr 9 at 18:16 Kuba hasn't forgotten Monica 148

5

votes

2

answers

109

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I cannot find reference (paper) of this relation $u(t)t^{α} ↔^{FT} f^{-(α+1)}$

fourier-transform reference-request power-law

modified Apr 6 at 23:32 Hilmar 20.1k

2

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3

answers

124

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Can I use more than one Window on an FFT?

fft window

modified 2 days ago Laurent Duval 26.2k

0

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3

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137

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How do I check for linearity for the following piecewise-defined system?

continuous-signals linear-systems homework

modified 2 days ago Laurent Duval 26.2k

2

votes

2

answers

136

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Why do we need to estimate eigenvalues?

matrix source-separation array-signal-processing eigendecomposition

modified 2 days ago Laurent Duval 26.2k

1

vote

1

answer

60

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Isolate g(t) starting from the definition of power spectrum

autocorrelation

modified 2 hours ago Peter K.♦ 19.2k

1

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2

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52

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why GMSK use a gaussian filter instead of raised cosine filter?

filters digital-filters gaussian pulse gmsk

modified Apr 7 at 2:32 MBaz 11.4k

0

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3

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51

views

Using large DFT for OFDM to avoid the guard interval

fft digital-communications ofdm

answered Apr 9 at 7:52 Marcus Müller 21.4k

0

votes

1

answer

57

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PLL: cycle slipping correction

digital-communications pll

modified 4 hours ago Moses Browne Mwakyanjala 478

1

vote

4

answers

64

views

Deconvolution to remove gaussian blur in 1D signal (Wiener filtering?)

filtering deconvolution 1d

answered 6 hours ago Laurent Duval 26.2k

1

vote

1

answer

44

views

Measuring frequency response with white noise signal

frequency-response frequency-domain

answered yesterday V.V.T 1,112

0

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2

answers

44

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Should we use a digital low pass or high pass filter to remove sensor bias?

lowpass-filter digital-filters analog-to-digital highpass-filter

modified Apr 6 at 16:58 Ben 2,876

1

vote

1

answer

31

views

FFT with fewer outputs than inputs

fft

answered Apr 8 at 11:07 Marcus Müller 21.4k

0

votes

1

answer

33

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Difference ;Phase and frequency offset

digital-communications

modified Apr 9 at 20:01 Dan Boschen 24.1k

0

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3

answers

50

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Is there processing gain for FMCW using heterodyne-style receiver as opposed to matched filter?

fft signal-analysis continuous-signals signal-detection radar

answered yesterday Envidia 1,292

1

vote

1

answer

38

views

FFT sample ordering with odd N

fft sampling

answered Apr 9 at 11:16 Hilmar 20.1k

0

votes

2

answers

48

views

Windowing of signal before FFT

fft frequency-spectrum power-spectral-density window-functions window

modified 2 days ago robert bristow-johnson 14.9k

2

votes

1

answer

36

views

Understanding LTI systems graphically

signal-analysis linear-systems homework

modified 2 days ago Laurent Duval 26.2k

0

votes

1

answer

45

views

Zero padding DFT intuition

dft dtft zero-padding

modified Apr 9 at 2:08 ZR Han 508

0

votes

1

answer

32

views

Spatial domain vs. Frequency domain filtering of an image. Which one is better?

image-processing fourier-transform

answered 2 days ago TimWescott 4,138

0

votes

1

answer

32

views

The plot of instantaneous power of the Dirac function

power-spectral-density continuous-signals impulse-response signal-power time-domain

answered 7 hours ago Marcus Müller 21.4k

2

votes

1

answer

31

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Where did we get the DC term of the Accumulator from DTFT?

discrete-signals fourier-transform dtft

modified Apr 9 at 11:37 Matt L. 72.8k

0

votes

1

answer

34

views

Calculating cross-correlation using Walsh-Hadamard transform

fft convolution impulse-response fourier correlation

answered 2 days ago Dilip Sarwate 16.9k

0

votes

0

answers

31

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what is the the resultant, or, “final” frequency of the FFT of a chirped signal

fft chirp

asked Apr 9 at 16:20 Q.P. 140

0

votes

0

answers

30

views

Curves clustering

source-separation clustering

asked Apr 9 at 12:48 Alexey K 43

0

votes

1

answer

30

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FFT: low magnitude peaks centered exactly 1 Hz apart across whole spectrum

fft

answered Apr 10 at 1:28 Hilmar 20.1k

1

vote

2

answers

30

views

Time Series processing using fft

matlab fft

answered Apr 7 at 13:43 Hilmar 20.1k

1

vote

0

answers

29

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Dynamic sampling of thermal images

sampling algorithms downsampling reference-request

modified Apr 7 at 12:37 MBaz 11.4k

0

votes

1

answer

29

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Improving Main Lobe Width of FFT

fft sampling sparse-model

modified 26 mins ago Dan Boschen 24.1k

0

votes

0

answers

28

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How to replicate/simulate experiments done on dsp kit 6713 without using hardware?

dsp-core c

modified Apr 9 at 18:00 Marcus Müller 21.4k

0

votes

0

answers

28

views

Modulation of Analytic Signal

digital-communications modulation hilbert-transform

modified 10 hours ago Ananya Agarwal 11

1

vote

1

answer

21

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Difference between Gabor filtering and Discrete Wavelet Transform

wavelet gabor

answered 2 days ago Laurent Duval 26.2k

0

votes

1

answer

26

views

Difficulty absorbing Idea of interpolation?

interpolation analog-to-digital reconstruction digital-to-analog

modified Apr 7 at 12:19 Dan Boschen 24.1k

1

vote

1

answer

26

views

Tuning a PID Controller

matlab filter-design transfer-function control pid

answered 2 days ago Ben 2,876

0

votes

1

answer

26

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FFT- based frequency offset estimation algorithm

fft digital-communications

modified 1 hour ago Dan Boschen 24.1k

0

votes

0

answers

23

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Generation of Aysnchronous signals in matlab

signal-analysis cross-correlation fourier-series hilbert-transform coherence

modified yesterday SREEKANTH 11

0

votes

1

answer

23

views

Implementation of Hilbert Spectrum in MATLAB

matlab hilbert-transform

modified 14 hours ago Matthias La 137

0

votes

1

answer

22

views

How to do sliding window multiplication in frequency domain

fft frequency-domain ifft time-domain

answered Apr 6 at 12:54 Hilmar 20.1k

1

vote

0

answers

22

views

Question about relationship between aliasing and matched filter

matched-filter maximum-likelihood-estimation

asked Apr 7 at 19:56 Emmmm 35

0

votes

0

answers

22

views

K-Path sampling overall transfer function

discrete-signals sampling z-transform

asked yesterday knzy 197

0

votes

1

answer

17

views

Get the transfer function when using the “designfilt” command in MATLAB

matlab filters lowpass-filter transfer-function

modified 14 hours ago Dan Boschen 24.1k

0

votes

0

answers

21

views

Intersymbol Interference calculation

filters digital-communications

modified yesterday Community♦ 1

3

votes

0

answers

21

views

How to detect rectangular images inserted into another image?

image-processing edge-detection classification corners

asked 14 hours ago Tobias Hermann 131

0

votes

0

answers

19

views

why do cascaded pole plant models create an internal/apparent time delay

linear-systems control-systems poles-zeros delay

asked Apr 8 at 11:58 Joesphtimeheist 1

0

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0

answers

19

views

is there a single process/term to describe dissipation and amplification of a signal?

signal-analysis modulation

asked Apr 7 at 22:25 Millemila 111

0

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0

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18

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Reconstruction of a signal based on non-uniform samples and a well below nyquist sampling rate

matlab nyquist nonuniform

modified Apr 8 at 21:38 TimWescott 4,138

0

votes

0

answers

18

views

Pre-Processing Wi-Fi Channel State Information (CSI) Data

python denoising butterworth preprocessing pca

modified yesterday RikeshMM 1

0

votes

0

answers

17

views

Viola Jones algorithm: Haar like features, how are the features extracted?

feature-extraction object-detection

asked Apr 10 at 3:27 user27286 101

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