Questions tagged [frequency-domain]
331 questions
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Determining the noise floor of a signal in the frequency domain
Is there an accepted way of determining the noise floor of a signal by looking at it in the frequency domain? Is it a matter of averaging all the bins, or median, or some more complex calculation like those described in the question below?
What's…
Dan Sandberg
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sketching frequency domain representation
I've been given this signal and asked to sketch a frequency domain representation how do i do that? how do you know which frequency components are present in the signal?
Maurice Moh
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Finding maxima and minima of a continuous time signal by using frequency method?
I have a PPG signal and I wanted to write a code that gives the maxima and minima value of signal by using frequency domain method. Any suggestions?
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Frequency Domain Equalization [Sources request]
When I read papers, I often see the term "Frequency Domain Equalizer".
I do not understand what a "frequency domain equalizer" is.
Do they mean equalizers like MMSE, LMMSE?
Or is there an equalizer called FDE?
HappyBee
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Time period to Instantaneous frequency
I have simple smooth time signal with different time period. I would like to transfer period over the time to frequency, and to track frequency changing over the time, I would call it Instantaneous frequency?
PF-period frequency (1/T)... any…
ToShare
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How to convert filter into frequency domain to do filtering?
I have this filter:
filter_2 = firceqrip(2,0.6,[0.05 0.03]);
I want to convert it to the frequency domain to multiply it by a signal (i.e filter in the frequency domain)
I have a signal and I have a filter.
I converted the signal into frequency…
HappyBee
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What is doppler tolerance
Can anybody explain the meaning of Doppler tolerance for the waveforms(Linear frequency modulated, Barker code, Polyphase codes) used for Pulse compression.
The Doppler frequency shift $f_{d}$ due to a moving target of velocity $v_{r}$ is given by…
Vinod
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2 by 2 bit orthogonal encoding mult-kronecker expansion matrices?
What is the name of the following bit encoding generator matrices?
linuxfreebird
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