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Top Questions

7 votes
2 answers
2k views

Why zero-pad at the end of a signal?

3 votes
1 answer
1k views

Why is sampling frequency/rate typically abbreviated Fs and not Sf in English?

3 votes
5 answers
254 views

Energy and Power: Power Spectral Density is units of Energy

2 votes
3 answers
189 views

Remove Wave Patterns from an Image Using Inpainting

3 votes
1 answer
387 views

Mathematically, why is there a tradeoff between main lobe width and sidelobe level when we apply a window?

4 votes
2 answers
250 views

Inverse filtering to undo a convolution blows up

2 votes
2 answers
169 views

Create a minimum phase filter from an elliptic digital filter

1 vote
1 answer
188 views

Why is true time delay beamforming more expensive to implement?

1 vote
2 answers
182 views

Taking an FFT of a signal that wraps around

2 votes
4 answers
154 views

Why is sampling not “idempotent”?

3 votes
1 answer
121 views

Z-transform of the Unit Step and DTFT

1 vote
2 answers
149 views

Why is reconstruction of window function from its DFT difficult/noisy when the sidelobes of DFT are higher?

3 votes
2 answers
84 views

Maximum of the sum of different sinusoids

1 vote
2 answers
90 views

IFFT return complex values in Matlab

2 votes
2 answers
142 views

How do you interpret the sign (positive, negative or zero) of the phase spectrum?

0 votes
1 answer
100 views

Cross Correlation Peak Value of Wideband signals - The Phase and Sample Offset are related but how

0 votes
2 answers
95 views

piecewise linear sqrt in python and C output comparison [closed]

0 votes
2 answers
93 views

How to remove known noise from acquired signals

2 votes
1 answer
112 views

ECG analysis in MATLAB

1 vote
2 answers
82 views

Baseband downconversion without imaging

1 vote
2 answers
100 views

Linear convolution of a 100 sample time series and a 20 tap filter in the frequency domain

1 vote
2 answers
77 views

Farrow filter - Effect of Delta Delay

0 votes
2 answers
88 views

Software/DSP based differential and common emulation in ADC

1 vote
2 answers
111 views

Why is white noise uncorrelated for any two different samples?

0 votes
1 answer
82 views

Generate a Time Series from Power Spectral Density Python

1 vote
1 answer
78 views

Decay of the impulse response for poles contained in the unit circle

1 vote
1 answer
55 views

finding the coefficients of the following difference equation so that it holds true

2 votes
1 answer
88 views

How does a time delay affect the difference equation of a LTI-system?

1 vote
1 answer
66 views

Using the Dirichlet kernel as a lowpass filter

2 votes
1 answer
64 views

Frequency components in graph signal processing

0 votes
2 answers
82 views

Butterworth filter vs Elliptic filter - artefacts and huge transient

0 votes
2 answers
48 views

Getting the magnitude and phase of a single specific frequency from an audio signal

1 vote
1 answer
47 views

frequency selective channel $\ne$ multi-tap channel?

0 votes
1 answer
60 views

Methods to determine stability of open-loop systems

1 vote
2 answers
76 views

Fourier series - finding its period from frequency representations

0 votes
1 answer
57 views

25Hz low-pass FIR filter for 96kHz high-quality audio

1 vote
1 answer
72 views

How do you filter a signal, split in batches, using an IIR filter?

0 votes
3 answers
70 views

very basic confusion about the bandwidth of constant signal function

2 votes
1 answer
87 views

Maximally Decimated Polyphase Channelizer Help

2 votes
1 answer
64 views

Confusion over deconvolution cost function gradient

1 vote
1 answer
63 views

Multirate systems - downsampling

0 votes
1 answer
58 views

Inverse of a causal and stable system

0 votes
1 answer
45 views

Confusion regarding Z-transform of unit step sequence in MATLAB

1 vote
1 answer
74 views

What are the advantages of using the Dirichlet kernel for interpolation?

0 votes
0 answers
73 views

Signal Separation (constant modulus)

0 votes
1 answer
56 views

Why is $y(n)=Ax(n)+B$ not relaxed if $B\neq 0$?

2 votes
1 answer
64 views

Convolution with Kronecker delta

-2 votes
1 answer
30 views

Is there a professional term for 1 over sampling rate?


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