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Gilles

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2,862

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fft

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3,000 Rep.

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Yearling

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1,760 posts edited

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1,417 votes cast

Answers (63)

Votes Activity Newest

19	Power spectral density vs. FFT bin magnitude
8	What is a $BT$ (Bandwidth-Time) product with reference to modulation?
7	Applying DFT twice does not actually reverse an array. Instead, the first element stays in place while the rest of the array is reversed. Why?
5	How do I calculate the range of a fixed-point number with $a$ integer bits and $b $ fractional bits?
4	Can we choose a sampling frequency to remove unwanted noise at a specific frequency?

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Reputation (2,862)

+10	Convolution theorem for cross-correlation
+10	Find power of a sum of sinusoids
+25	Why do the DTFT and FFT give me completely different results for magnitude at a specific frequency?
+10	Power spectral density vs. FFT bin magnitude

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Questions (4)

Votes Activity Newest

5	Time domain distortion vs Harmonics
2	DFT sinusoid's fundamental frequency, intuitively
0	Time-bandwidth product and uncertainty on harmonics
0	Overlap-windowing vs preserved information

Tags (70)

27 fft × 7	15 discrete-signals × 8
21 power-spectral-density × 3	14 signal-analysis × 6
20 fourier-transform × 14	12 proof × 6
20 magnitude × 2	12 bandwidth × 4
16 dft × 13	11 matlab × 7

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Bookmarks (152)

Votes Activity Newest Views Added

178	“River” detection in text
134	Why is the Fourier transform so important?
122	What does frequency domain denote in case of images?
95	What is the physical significance of negative frequencies?
91	Why is it a bad idea to filter by zeroing out FFT bins?

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Accounts (3)

	Signal Processing	2,862 rep	3 gold badges17 silver badges27 bronze badges
	Cross Validated	1,002 rep	1 gold badge10 silver badges21 bronze badges
	Computational Science	253 rep	1 gold badge2 silver badges10 bronze badges

Badges (34)

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Votes cast (1,417)

all time			by type			month		week
1,400	up		915	question		18		5
17	down		502	answer		18		5

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