Response

Different phase response plots using MATLAB's $\tt freqz$ and $\tt fvtool$?

Different phase response plots using MATLAB's $\tt freqz$ and $\tt fvtool$?
  1. What does the Freqz function do in Matlab?
  2. What does Fvtool do in Matlab?
  3. What is phase response in signal and system?

What does the Freqz function do in Matlab?

freqz determines the transfer function from the (real or complex) numerator and denominator polynomials you specify and returns the complex frequency response, H(ejω), of a digital filter. The frequency response is evaluated at sample points determined by the syntax that you use.

What does Fvtool do in Matlab?

fvtool( rcfilter ) plots the magnitude response of the specified filter. fvtool( rcfilter , options ) plots the response that is specified by options . For example, to plot the impulse response of the specified filter, set options to 'impulse' .

What is phase response in signal and system?

In signal processing, phase response is the relationship between the phase of a sinusoidal input and the output signal passing through any device that accepts input and produces an output signal, such as an amplifier or a filter.

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