Hottest Questions This Week

2

votes

2

answers

177

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Do Fourier frequencies actually exist in real life in form of “fundamental frequency”?

frequency fourier

modified yesterday Maurizio Carcassona 13

0

votes

3

answers

70

views

What is the precise definition of a nonlinear signal?

signal-analysis

answered Apr 18 at 13:11 Hilmar 10.6k

1

vote

2

answers

78

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Question About Sampling White Noise

noise sampling homework

modified 8 hours ago Dilip Sarwate 13.5k

0

votes

2

answers

52

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What is the interpretation of Fourier Transform containing only imaginary part?

fourier-transform dft fourier dtft

modified Apr 20 at 18:37 Matt L. 51.6k

1

vote

1

answer

49

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Calculation of line of sight system gain

signal-analysis

answered yesterday MBaz 9,080

1

vote

1

answer

47

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Cost function for LTI system identification

linear-systems transfer-function system-identification autoregressive-model

modified yesterday Jonas Schwarz 264

0

votes

1

answer

46

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Difference between two sine generators

signal-analysis frequency-spectrum signal-synthesis

modified 14 hours ago Olli Niemitalo 8,688

0

votes

1

answer

50

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Why do we need to write the noise as randn(2,1)./sqrt(2*SNR) instead of randn(1,1)/sqrt(2)?

noise digital-communications

modified yesterday AlexTP 4,599

0

votes

1

answer

37

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Is it possible to do better than Cramér Rao lower bound for different estimation methods

algorithms estimation

answered 2 days ago Marcus Müller 12.6k

1

vote

1

answer

22

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Denoising Oscilloscope data the right way [python3]

noise oscillator

answered 11 hours ago A_A 7,869

2

votes

1

answer

35

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Deconvolution of two FIRs

fir deconvolution

answered 6 hours ago Peter K.♦ 17.3k

0

votes

0

answers

42

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Sampling and highest frequency rate

image-processing sampling frequency

modified 6 hours ago eng 1

2

votes

1

answer

31

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Odd-order Butterworth filter gain at cutoff frequency

filters butterworth

modified Apr 18 at 7:40 Matt L. 51.6k

0

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1

answer

35

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rate 1/128 channel code for 5 bits of information

channelcoding

answered Apr 19 at 16:59 BryanEhlers 155

1

vote

1

answer

35

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+50

Tetrahedral microphone array beamforming in MATLAB

beamforming array-signal-processing

answered 3 hours ago endolith 10.5k

1

vote

1

answer

27

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Exponential Chirp

python chirp

modified 9 hours ago BADWOLF 8

0

votes

1

answer

21

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Transfer Function definition

transfer-function

answered yesterday havakok 173

0

votes

1

answer

34

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ADC and Matched Filtering

discrete-signals digital-communications matched-filter stochastic

answered yesterday Marcus Müller 12.6k

0

votes

1

answer

23

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Time Setting of $z$ and Laplace Transforms

discrete-signals continuous-signals z-transform transform laplace-transform

modified Apr 20 at 16:44 Dan Boschen 10.5k

0

votes

1

answer

29

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Why is the ROC of Laplace transform independent of imaginary part of s?

fourier-transform linear-systems laplace-transform

answered Apr 19 at 12:46 Matt L. 51.6k

1

vote

1

answer

22

views

What's the maximum allowable amplitude modulation frequency for a given carrier frequency?

wavelet amplitude-modulation

answered yesterday hotpaw2 26.2k

0

votes

1

answer

22

views

What is the name of this filter?

filters

answered Apr 19 at 12:39 Marcus Müller 12.6k

0

votes

0

answers

28

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PLL carrier recovery: intermediate versus baseband

discrete-signals digital-communications pll

modified Apr 19 at 12:58 Marcus Müller 12.6k

0

votes

1

answer

28

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How Could I extract the signal in the below Image

filters dft

answered Apr 17 at 9:57 MrHat 6

-1

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1

answer

27

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Correlation of vector signal

fourier-transform autocorrelation correlation

modified 2 hours ago Stanley Pawlukiewicz 6,464

0

votes

0

answers

26

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Linear Combiner Based LMS Transfer Function

z-transform transfer-function adaptive-filters beamforming lms

asked Apr 20 at 17:04 chaosmind 1

-2

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0

answers

26

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please help with this QUESTION [on hold]

digital-communications

asked Apr 20 at 13:02 kamaldeep 1

-1

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0

answers

25

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Period and frequency of digital sequences

frequency digital periodic theory

modified 10 hours ago A_A 7,869

0

votes

2

answers

24

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Does a phase rotation introduce a delay?

discrete-signals

answered Apr 17 at 20:34 Stanley Pawlukiewicz 6,464

1

vote

1

answer

24

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How to achieve a smoothed frequency phase response with no outliers

fft filters noise phase

modified Apr 18 at 14:30 hotpaw2 26.2k

0

votes

1

answer

24

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Are the error probability of orthogonal signal and on/off signal the same?

signal-analysis digital-communications continuous-signals

answered yesterday Marcus Müller 12.6k

0

votes

0

answers

23

views

What is a good book/tutorial that explains Viterbi decoder for convolutional codes?

reference-request viterbi-algorithm

modified 2 days ago S. Khan 14

0

votes

1

answer

22

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Coefficients for half-order filter

noise

answered Apr 17 at 5:16 Olli Niemitalo 8,688

0

votes

1

answer

17

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confused in using modulation technique

frequency-spectrum modulation

answered Apr 20 at 7:05 Marcus Müller 12.6k

0

votes

1

answer

17

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Differences in moving window rms due to sampling rate

discrete-signals statistics downsampling moving-average

answered Apr 20 at 14:32 Hilmar 10.6k

-1

votes

0

answers

21

views

Is tanx(t) stable?

stability

modified Apr 19 at 16:50 Jack Seller 1

1

vote

0

answers

21

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Implementing real-time variable fractional delay line in Matlab

audio delay audio-processing

asked yesterday Big_Thin_Ker 6

0

votes

0

answers

19

views

Intercepting a Bluetooth Signal

homework

modified Apr 20 at 7:02 Marcus Müller 12.6k

0

votes

1

answer

18

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How to Remove the Patch Artifacts of Neural Network Denoising Process?

image-processing python image-segmentation denoising neural-network

modified yesterday Royi 7,301

0

votes

0

answers

17

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IFFT, negative frequencies and noncausal impulse

fft discrete-signals ifft digital-filters dtft

asked Apr 17 at 23:55 FourierFlux 62

1

vote

0

answers

15

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Region of convergence of transfer function

linear-systems laplace-transform causality

modified 2 days ago Matt L. 51.6k

-2

votes

0

answers

15

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I need help with this problem

filters fir

asked yesterday Ivy 1

0

votes

0

answers

15

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How to find the filter coefficient of matched filter to detect the pulse of a signal?

signal-analysis digital-filters math periodic radar

asked Apr 19 at 5:33 Valona 10

0

votes

0

answers

15

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Calculating N for DFT

dft

modified Apr 19 at 2:55 pico 1

0

votes

0

answers

15

views

Mathematics behind bandwidth of product of two signals

convolution frequency-domain bandwidth

asked yesterday William 1

0

votes

1

answer

11

views

Fourier Transform of the Hilbert Transform of cos(t) (using Fourier time-shifting property)

fourier-transform hilbert-transform

answered Apr 18 at 0:03 Taha 11

0

votes

0

answers

14

views

How to save a specific frequency range as a wave file?

audio-processing

asked Apr 19 at 11:52 Petoetje59 101

0

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0

answers

14

views

Mscohere in Matlab-why would the coherence tends to 1 as nfft increases?

coherence

asked Apr 18 at 11:50 Fede C 1

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