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15

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How do you determine the power required for a phase shift keying modulation scheme?

asked 10 hours ago user1068636 153

0

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14

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Programmatically (e.g. in Python) adding clipping to an audio file?

audio python

modified 8 hours ago lennon310 3,367

1

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2

answers

49

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Rectify signal basic question

discrete-signals signal-analysis resampling

answered 16 hours ago Hilmar 13.5k

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45

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Division in the Fourier Domain (Deconvolution) - How to Handle Lengths of the Signals

fourier-transform convolution deconvolution

modified 16 hours ago Royi 12.3k

0

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0

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25

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How to determine the dimension of the spectrogram?

matlab frequency-spectrum spectrogram

modified 8 hours ago Sm1 113

0

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1

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36

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Different amplitude in time-domain vs frequency-domain

frequency-spectrum

answered 21 hours ago Hilmar 13.5k

1

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2

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57

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Show Equivalence Between Multiplication in Time Domain to Convolution in Frequency Domain

matlab discrete-signals fourier-transform convolution time-frequency

modified 19 hours ago Royi 12.3k

0

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0

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24

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Spatial wavelength

image-processing spatial

modified 21 hours ago Marcus Müller 15.2k

0

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0

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35

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QPSK vs BPSK bandwidth efficiency

matlab modulation qpsk bpsk

modified 23 hours ago Marcus Müller 15.2k

1

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2

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75

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I am having some hard time in understanding the difference between MAP criteria and ML?

signal-detection estimation parameter-estimation maximum-likelihood-estimation maximum-a-posteriori-estimation

modified yesterday David 169

0

votes

1

answer

45

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Analytic solution for non-flat filter design

filter-design

answered 19 hours ago Fat32 21.1k

1

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1

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80

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+50

Power spectral density of a simple continuous cosine and checking the correct average power can be recovered, as it should according to Parseval

fourier-transform continuous-signals power-spectral-density autocorrelation parseval

modified 20 hours ago teeeeee 71

3

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0

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32

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Proof for the solution of homogenous difference equation

discrete-signals differential-equation

asked yesterday Shukant Pal 143

0

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1

answer

34

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What is the formula for the frequency spectrum?

frequency-spectrum dtft

modified yesterday Dan Boschen 15.5k

0

votes

1

answer

17

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Frequency-specific Delay?

audio delay audio-processing equalizer

modified yesterday Dan Boschen 15.5k

0

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2

answers

41

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Using ROC to find stability of system in specific example

z-transform transfer-function poles-zeros stability

modified yesterday jithin 585

0

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0

answers

38

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Lowpass Butterworth filter equation

lowpass-filter bandpass butterworth scipy

modified yesterday Sara 1

-1

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1

answer

37

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How to generate Hilbert Filter FIR coefficients for a given specification in MATLAB? [closed]

matlab fir hilbert-transform

modified yesterday lennon310 3,367

0

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1

answer

30

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Is zero-padding necessary for speech processing to satisfy linear convolution property?

convolution speech-processing zero-padding

modified 2 days ago jithin 585

0

votes

1

answer

43

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Kronecker delta instead of dirac delta as correlation function of white noise

noise autocorrelation gaussian correlation

answered 2 days ago Mohammad M 1,136

0

votes

0

answers

27

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Canceling interference (such as harmonics from out of band source )

filters discrete-signals digital-communications sampling baseband

modified yesterday Marcus Müller 15.2k

0

votes

2

answers

71

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FFT looking messy after filtering process

fft filters discrete-signals

modified 2 days ago user10971344 29

0

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1

answer

14

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Is it possible to detect or localize movement of objects using LPWA (or LPWAN) such as LoRa, DASH7, NB-FI?

signal-analysis kalman-filters radar doppler localization

answered 2 days ago Marcus Müller 15.2k

0

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1

answer

25

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Gain at critical frequency for Butterworth and Chebishev filters

filters infinite-impulse-response

modified 2 days ago jithin 585

-2

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0

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34

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How to write Matlab code for generating orthogonal signal in time domain? [closed]

matlab filters signal-analysis gaussian pulse

asked 2 days ago DMK 1

0

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0

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25

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Adjust signal to account for increase in gain

matlab

modified 2 days ago Marcus Müller 15.2k

0

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0

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47

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Comparing the performance of a digital communication sim against a reference

digital-communications noise gaussian snr fsk

modified 2 days ago jithin 585

0

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1

answer

41

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2D Fourier downsampling

fourier-transform downsampling

modified Mar 25 at 1:48 Dan Boschen 15.5k

7

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1

answer

89

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Fundamental questions about state-space and Kalman filters

kalman-filters control-systems state-space

modified Mar 24 at 13:53 Knut Inge 299

0

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0

answers

23

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Using the log power spectrum as features for a Classifier

fft frequency-spectrum power-spectral-density classification

asked Mar 25 at 5:46 Kanmani 121

0

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1

answer

37

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wavelength from peaks

filters

modified 2 days ago Dan Boschen 15.5k

3

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2

answers

71

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Orthogonal Codes for Band Limited Channel

digital-communications orthogonal-signals

modified Mar 23 at 22:31 MBaz 10.1k

0

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0

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20

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Could you classify an instrument using only its harmonics?

frequency-spectrum classification music

asked Mar 24 at 23:17 Izzo 627

0

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0

answers

26

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What does Allan variance really means?

statistics sensor

modified Mar 24 at 18:42 baptiste 1

0

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1

answer

31

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Upsampling question- Aliasing/imaging problem

discrete-signals signal-analysis python resampling

modified Mar 24 at 10:43 jithin 585

5

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0

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129

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Residual error when setting measurement matrix in compresssive sensing

image-processing matlab estimation compressive-sensing

modified yesterday Gze 330

0

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1

answer

29

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Is there a term called “Fourier Beamforming”?

digital-communications beamforming soft-question

answered Mar 24 at 11:57 Hilmar 13.5k

0

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0

answers

26

views

How to cancel this noise to find numbers of DTMF tones?

frequency-response noise-cancellation

modified Mar 24 at 22:13 An Vo Le 1

0

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1

answer

25

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how can the channel fading model (Rayleigh, or Rice, or Log normal distribution) infer the way channel estimation is done?

discrete-signals digital-communications digital-filters

answered Mar 24 at 9:01 Florian 1,446

1

vote

2

answers

65

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Proof that spectrum analyzer measures mathematical Power Spectral Density

frequency-spectrum power-spectral-density measurement

answered Mar 23 at 23:40 Jagerber48 235

0

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0

answers

24

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Time domain to angular domain approach

discrete-signals signal-analysis python time-domain

asked Mar 24 at 11:50 user10971344 29

0

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1

answer

43

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Using overlap add for drawing spectrogram

fft window-functions overlap-add

modified Mar 24 at 8:24 kakyo 103

0

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0

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17

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short time discrete fourier transform to detect time dependent changes in a frequency of interest & filter

filters phase fourier stft

modified Mar 24 at 18:26 Céleste 1

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2

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54

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How to avoid overtones in audio signal

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answered Mar 23 at 14:52 hotpaw2 30.1k

2

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2

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98

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Image Processing on Raspberry Pi

convolution image-segmentation

answered Mar 22 at 14:37 Rethunk 621

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1

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49

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Why is it assumed that $x[n]$ is limited from $0$ to $N-1$ while evaluating DFT?

discrete-signals fourier-transform dft

modified Mar 23 at 16:57 robert bristow-johnson 13.2k

0

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1

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47

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What is the effect of padding zeros to FFT on time domain ? (opposite of what is usually done)

fft discrete-signals signal-analysis fourier-transform

answered Mar 22 at 23:25 Fat32 21.1k

0

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0

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32

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Strange FFT spectrum after resampling

fft discrete-signals frequency-spectrum

modified Mar 23 at 15:46 Dan Boschen 15.5k

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