Signal Processing Stack Exchange

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What is the x and y axis showing for this matplotlib.pyplot histogram of a .wav file?

asked 51 mins ago user90664 1

0

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0

answers

5

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Estimating sampling frequency offset

frequency

asked 2 hours ago Sam 1

5

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6

answers

276

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Why does a longer observation time improve DFT resolution, but repeating a signal does not?

fft signal-analysis fourier-transform dft

modified 2 hours ago Fat32 24.4k

1

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0

answers

6

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How to determine which measurements cause which?

python causality

modified 2 hours ago MBaz 11.2k

1

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1

answer

58

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Negative instantaneous frequency with hilbert transform using scipy hilbert

signal-analysis python frequency-response hilbert-transform

modified 2 hours ago amyaner 11

0

votes

1

answer

6

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Is the expansion of this expression correct?

discrete-signals convolution

answered 4 hours ago DSP Rookie 2,318

0

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0

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33

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Two tones:czt vs fft

fft

modified 5 hours ago lennon310 3,410

0

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0

answers

2

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What are some reliable sources which I can use to validate my code for simulating MPC?

control-systems reference-request convex-optimization programming

asked 5 hours ago ModCon 103

1

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0

answers

20

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How to design a good IIR smoothing filter?

matlab filter-design

asked 6 hours ago neolith 143

0

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1

answer

119

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Detect valve position without colors

image-processing opencv c++

modified 7 hours ago Community♦ 1

0

votes

1

answer

17

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confusions regarding periodicity?

signal-analysis periodic

answered 8 hours ago TimWescott 3,778

0

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1

answer

70

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What is the form of the spectral derivative in the all-positive-frequency notation in DFT?

fourier-transform frequency-spectrum dft derivative

modified 8 hours ago Community♦ 1

0

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2

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84

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CORDIC, What is it?

digital-communications phase pll

modified 8 hours ago Ali23 43

0

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0

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20

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GMSK CFO estimation and timing recovery

gmsk

modified 10 hours ago Marcin Puchlik 23

0

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1

answer

25

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Determine group delay from the frequency response of FIR filter

filters finite-impulse-response frequency-response linear-phase

modified 10 hours ago Dan Boschen 23.2k

1

vote

1

answer

34

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Ultrasonic TDoA / ToA Measurement?

signal-detection audio-processing ultrasound sound-recognition time-of-arrival

modified 10 hours ago dsparateRealities 11

1

vote

4

answers

125

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What is the principle behind my voice echoing perpetually when 2 separate devices are used for playback and recording on video calls?

audio digital-communications control-systems audio-processing

modified 11 hours ago user12750353 248

0

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2

answers

9k

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Determine whether the system is a FIR or IIR by looking the transfer function

z-transform finite-impulse-response

answered 13 hours ago Sandeep Kumar sai 11

3

votes

2

answers

89

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FFT for long waveform

fft

modified 15 hours ago OverLordGoldDragon 903

0

votes

0

answers

18

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MATLAB “conv”command valid/legal for both causal and non causal signals?

matlab

asked 17 hours ago engr 835

0

votes

0

answers

37

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Co-channel interference in MIMO systems

digital-communications reference-request multipath mimo interference

modified 22 hours ago New_student 493

1

vote

3

answers

2k

views

Career in signal processing

image-processing dsp-core books

answered 23 hours ago ZiglioUK 121

1

vote

1

answer

26

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Direct and Transpose Polyphase Multirate Processing

interpolation decimation multirate polyphase

answered 23 hours ago ZiglioUK 121

2

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0

answers

53

views

How Do Particle Filters Get Velocity When Tracking with Pos Measurements

filters kalman-filters tracking particle-filter

modified yesterday Camilo Gabriel Aguilar 1

3

votes

1

answer

58

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UPDATE : How to continue Computing the Convolution

convolution continuous-signals

modified yesterday Joumana L. Kincaid 35

0

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0

answers

22

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Instantaneous amplitude of a constant frequency sine wave?

frequency hilbert-transform amplitude

asked yesterday amyaner 11

0

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0

answers

14

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Is Kaiser-Bessel filter good for notch filtering with time-sensitive data?

filters filter-design time-domain

asked yesterday Alexander Golys 101

20

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3

answers

6k

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Which IIR filters approximate a Gaussian filter?

filters filter-design gaussian

answered yesterday a concerned citizen 995

15

votes

2

answers

7k

views

What distance metric can I use for comparing images?

image-processing distance-metrics

answered yesterday Arritmic 241

0

votes

1

answer

36

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Time domain representation of a modulated signal when symbol rate >> carrier frequency?

digital-communications continuous-signals modulation bandwidth time-domain

modified yesterday Marcus Müller 21k

3

votes

1

answer

31

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Validity of an argument that two transfer functions are minimum-phase based on their ratio being minimum-phase

hilbert-transform minimum-phase

modified yesterday Community♦ 1

0

votes

1

answer

86

views

How to determine SNR required for adding AWGN noise to clean IQ samples?

filters power-spectral-density

modified yesterday Community♦ 1

0

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0

answers

23

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Discussion of simulation results of a signal sequence: amplitude

digital-communications amplitude bpsk

asked yesterday Ali23 43

0

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1

answer

48

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Correlations of matrix

matlab correlation

modified yesterday Community♦ 1

2

votes

2

answers

1k

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Faster way to find the quantization level of a sample

sound analog-to-digital

modified yesterday Community♦ 1

1

vote

4

answers

19k

views

Time variant and Time Invariant Systems

linear-systems

modified yesterday Peter K.♦ 19.1k

0

votes

0

answers

13

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Ringing/Oscillation in the reconstructed Periodogram

power-spectral-density autocorrelation autoregressive-model periodogram

asked yesterday Sam Gomari 111

0

votes

1

answer

22

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Help with filter stability, ROC and output of a system

discrete-signals

answered yesterday David 343

1

vote

2

answers

22

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How are unmeasured properties (like velocity and covariance of velocity) handled with a Kalman filter?

kalman-filters tracking

answered yesterday TimWescott 3,778

1

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0

answers

10

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Calculate ScaleVlues of IIR Filter manually from sosMatrix of MATLAB

matlab filter-design digital-filters scaling

asked yesterday Saeed Hatami 11

1

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2

answers

109

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Simulating a raised cosine filter

matlab filters digital-communications c reference-implementation

modified yesterday Gilles 3,042

0

votes

1

answer

47

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Build an inverse model for a train of gaussian pulses

sampling stationary inverse

modified yesterday Community♦ 1

0

votes

1

answer

17

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Homography valid for patch within the image but not the entire image?

image-processing computer-vision camera-pose homography

answered yesterday user12750353 248

0

votes

1

answer

25

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Compression of Multivariate Phase Signals

phase pca

answered yesterday user12750353 248

1

vote

0

answers

21

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Explain the relationship between Tikhonov regularization, SVD , least squres, and the Wiener filter

signal-analysis filter-design inverse-problem

asked yesterday Herman Jaramillo 111

0

votes

3

answers

55

views

Recover an OFDM signal affected by AWGN

answered yesterday DSP Rookie 2,318

0

votes

0

answers

72

views

Low-pass filter + HRTF cascade audio artifacts

filters audio-processing real-time hrtf

modified yesterday Mattia Surricchio 229

0

votes

1

answer

31

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Where is the mistake in the convolution?

discrete-signals convolution

answered yesterday DSP Rookie 2,318

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