New answers tagged phase
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FIR filters: is it possible to manipulate phase without change in magnitude response
Of course it is possible to do some manipulation of phase.
An FIR filter has all of its poles located at $z=0$ (as stable as they can be) but the zeros may be located all inside the unit circle (a ...
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FIR filters: is it possible to manipulate phase without change in magnitude response
It is possible to manipulate phase while maintaining constant amplitude over a portion of the Nyquist bandwidth with an FIR filter, but not over the full Nyquist bandwidth (DC to $f_s/2$ where $f_s$ ...
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FIR filters: is it possible to manipulate phase without change in magnitude response
FIR filters: is it possible to manipulate phase without change in magnitude response
Technically speaking: "not really". A filter whose transfer function has unity magnitude for all ...
- 38k
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Scenarios where Phase Response is (non-)problematic
One audio example: The human ear is quite insensitive to monaural phase but quite very sensitive to interaural phase.
Let's make a stereo signal by simply duplicating a mono signal. If you apply a (...
- 38k
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Scenarios where Phase Response is (non-)problematic
Divide the filter's frequency response in two parts: a passband (the portion of the input that should be present in the output), and a stopband (the portion of the input that should be rejected).
In ...
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Phase of signal can affect the data rate?
Reconfigurable Intelligent Surfaces can change phase of the incoming signal. If the channel parameters can be obtained perfectly at RIS then
a communication system with RIS improves data rate in ...
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visualizing frequency and phase of a system's response to an impulse
The frequency response for a discrete time system is a continuous function in frequency, specifically it is the Discrete Time Fourier Transform (DTFT), not the DFT which is discrete in frequency (the ...
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visualizing frequency and phase of a system's response to an impulse
The Frequency Response is the Fourier Transform of the Impulse Response.
So, for impulse response $h[n]$, compute $H[k] = \texttt{FFT}\{h[n]\}$, then the magnitude response is the absolute value $\...
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