Hottest Questions This Month

4

votes

2

answers

1k

views

Is the Laplace transform a special case of Fourier transform? (Not the other way around)

fourier-transform laplace-transform

modified Mar 16 at 17:20 Matt L. 59.6k

6

votes

5

answers

452

views

Inconsistency with the units of power spectral density and the definition the people often give

modified Apr 3 at 12:52 teeeeee 192

2

votes

3

answers

290

views

Audio signal processing book suggestions

audio reference-request

modified Mar 16 at 15:03 robert bristow-johnson 13.2k

2

votes

1

answer

427

views

When to use Fourier, Laplace and Z transforms?

fourier-transform z-transform laplace-transform

modified Mar 12 at 1:35 robert bristow-johnson 13.2k

0

votes

5

answers

132

views

Does negative frequency actually exist or it is just theoretical?

frequency-spectrum frequency

modified Mar 31 at 1:17 Thomas A. Groover 29

0

votes

5

answers

127

views

Amplitude reduction of Simple Moving Average on sinusoid

lowpass-filter amplitude moving-average

modified Apr 5 at 14:36 MisterH 193

1

vote

3

answers

111

views

Understanding the Difference Between MAP Estimation and ML Estimation

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

answered Mar 31 at 20:16 Mark Borgerding 2,705

0

votes

4

answers

128

views

What is meant by “Group delay”?in simple words?

group-delay

modified Apr 4 at 21:50 Izzo 599

2

votes

3

answers

87

views

Single pole IIR filter, fixed point design

filter-design infinite-impulse-response poles-zeros fixed-point floating-point

modified yesterday Ben 1,870

1

vote

2

answers

129

views

High Pass Filtering and Noise

fft power-spectral-density filtering

modified Apr 3 at 20:42 Dan Boschen 16.2k

3

votes

2

answers

72

views

Convolution v.s. Cross Correlation in Digital Image Processing

image-processing convolution cross-correlation

answered Mar 15 at 13:07 Laurent Duval 20.9k

3

votes

2

answers

112

views

Why does this parallel IIR filter have such a weird form?

filters infinite-impulse-response

modified Apr 1 at 4:28 Dan Boschen 16.2k

2

votes

2

answers

110

views

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

matlab discrete-signals fourier-transform convolution time-frequency

modified Mar 27 at 13:44 Royi 12.6k

1

vote

3

answers

51

views

Confusion regarding calculation of fundamental period?

signal-analysis periodic fundamental-frequency

modified Apr 1 at 12:44 Man 308

2

votes

2

answers

104

views

Image Processing on Raspberry Pi

convolution image-segmentation

answered Mar 22 at 14:37 Rethunk 621

2

votes

3

answers

77

views

What is difference between frequency and pitch?in nutshell and simple words?

audio frequency pitch music audio-processing

modified Mar 19 at 6:12 Man 308

2

votes

1

answer

123

views

What happens to the standard deviation of a white Gaussian noise after low pass filter?

noise lowpass-filter

answered Mar 16 at 0:38 Juancho 4,310

1

vote

3

answers

95

views

Frequency domain samples to time domain without knowing the sampling rate?

fft ofdm ifft

modified Mar 18 at 17:59 ummg 13

2

votes

1

answer

67

views

How to Decompose a Separable Filter?

image-processing filters separability

modified 2 days ago Royi 12.6k

1

vote

1

answer

109

views

IIR - How the gain is calculated?

infinite-impulse-response

modified Apr 2 at 12:11 Kampi 113

1

vote

1

answer

65

views

What is issue in square wave reconstruction?

signal-analysis frequency-spectrum fourier signal-synthesis

modified Apr 1 at 16:13 Cedron Dawg 5,148

1

vote

2

answers

173

views

Help with obtaining the power spectral density of a simple continuous cosine (using both forms of the definition for PSD)

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

modified Apr 1 at 17:19 Peter Mortensen 161

7

votes

1

answer

93

views

Fundamental questions about state-space and Kalman filters

kalman-filters control-systems state-space

modified Mar 24 at 13:53 Knut Inge 329

1

vote

2

answers

114

views

Removing Noise from time across signal data

matlab signal-analysis filter-design noise-cancellation

modified Mar 18 at 18:34 Ed V 476

5

votes

0

answers

144

views

Residual error when setting measurement matrix in compresssive sensing

image-processing matlab estimation compressive-sensing

modified Mar 26 at 10:01 Gze 332

3

votes

3

answers

68

views

DFT for signals of different length and sampling rate

fft sampling power-spectral-density

modified Apr 3 at 19:36 dsp_user 520

0

votes

4

answers

48

views

Why is In-phase Quadrature sampling not used to record and store digital audio?

audio sampling quadrature radio

modified Apr 2 at 21:14 Dan Boschen 16.2k

0

votes

2

answers

77

views

How do Anti-Aliasing Filters filter the signal?

filters sampling lowpass-filter aliasing anti-aliasing-filter

modified Mar 29 at 23:47 Nigel Redmon 166

1

vote

3

answers

74

views

Complex exp. Fourier series, finding $x(t)$ when $X(j\omega)$ is given as magnitude and phase plot

frequency-spectrum fourier fourier-series

answered Mar 31 at 7:43 DSP Novice 202

3

votes

2

answers

73

views

Orthogonal Codes for Band Limited Channel

digital-communications orthogonal-signals

modified Mar 23 at 22:31 MBaz 10.3k

0

votes

1

answer

44

views

Confusion about collection of bits and symbols

digital-communications modulation

modified Mar 18 at 16:05 MBaz 10.3k

0

votes

3

answers

88

views

I can't wrap my mind around the concept of filtering and the unit circle ? any help? [closed]

filters digital-communications filtering digital-filters

answered Mar 11 at 15:35 Cristobol Polychronopolis 131

1

vote

2

answers

53

views

Eye pattern construction and interpretation

filters signal-analysis digital-communications continuous-signals digital-filters

modified Mar 18 at 12:42 Dan Boschen 16.2k

0

votes

3

answers

52

views

How to generate a sinusoid with STFT at a frequency which is between bins

fft frequency-spectrum stft signal-synthesis

modified Mar 21 at 23:51 robert bristow-johnson 13.2k

0

votes

2

answers

31

views

Can some one explain what is the meaning ( in real life) of anti causal (precursor) part of the channel taps?

filters discrete-signals signal-analysis filter-design

answered Mar 13 at 16:50 TimWescott 1,588

1

vote

2

answers

65

views

Rectify signal basic question

discrete-signals signal-analysis resampling

answered Mar 27 at 17:34 Hilmar 13.8k

0

votes

2

answers

50

views

How many data points are required for one revolution?

fft signal-analysis

modified Mar 15 at 14:59 Marcus Müller 15.3k

1

vote

2

answers

82

views

Help with finishing this integral, to obtain the power spectral density of a pure cosine wave

fourier-transform continuous-signals power-spectral-density integration

modified Apr 2 at 12:22 Cedron Dawg 5,148

2

votes

2

answers

57

views

In z-transform, if z means “delay”, why do we talk about the value of z?

discrete-signals z-transform

answered Mar 12 at 14:54 TimWescott 1,588

0

votes

1

answer

43

views

Is it true that each and every signal has multiple frequency components?

signal-analysis frequency-spectrum frequency-domain signal-synthesis

modified Apr 1 at 9:11 Max 844

1

vote

3

answers

55

views

Upsampling with time offsets

sampling nyquist multirate polyphase

modified yesterday jithin 905

0

votes

1

answer

116

views

Blind Estimation of Signal Parameter and Noise Variance

random-process parameter-estimation

modified Apr 4 at 15:09 Engineer 1,218

0

votes

2

answers

69

views

Explanation for the quantization matlab function

matlab quantization

modified Mar 17 at 3:32 DSP Novice 202

0

votes

1

answer

53

views

“plot” command for continous time signal in matlab?uses interpolation?

image-processing matlab discrete-signals continuous-signals

modified 8 hours ago Dan Boschen 16.2k

1

vote

3

answers

41

views

System classification: unit-time delay

linear-systems classification state-space unit-delay

answered Mar 15 at 2:05 DSP Novice 202

0

votes

3

answers

41

views

Help with Audio Signal noise removing using FFT and IFFT in Matlab

matlab signal-analysis fourier-transform audio denoising

modified Apr 4 at 14:23 Dan Boschen 16.2k

0

votes

2

answers

86

views

Converting PSD to Time Domain Signal

matlab fft power-spectral-density ifft

modified Mar 11 at 11:38 DSP Novice 202

2

votes

1

answer

66

views

Factored form vs partial fraction form?

matlab signal-analysis z-transform

modified Mar 11 at 16:38 engr 611

Top Questions

Looking for more? Browse the complete list of questions, or popular tags. Help us answer unanswered questions.