# Tag Info

### 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 ...
Accepted

### 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 $f_s$ ...
• 43.6k
1 vote

### 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

### 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

### 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 ...
• 14.4k

### 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 ...
• 23
1 vote
Accepted

### 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 ...
• 43.6k
1 vote

### 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 \$\...
• 3,475

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