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getFilter

Get underlying FIR filter

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Syntax

filter = getFilter(DF)

Description

example

filter = getFilter(DF) returns the underlying FIR filter, filter, used to implement the differentiator, DF.

Examples

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Open Live Script

Create a dsp.Differentiator System object with default properties. 

DF = dsp.Differentiator;

Use getFilter to get the underlying FIR filter, filter, which implements the differentiator, DF.

filter = getFilter(DF)
filter = 
  dsp.FIRFilter with properties:

            Structure: 'Direct form'
      NumeratorSource: 'Property'
            Numerator: [-0.0019 0.0024 -8.7640e-04 6.6377e-04 ... ]
    InitialConditions: 0

  Show all properties

Input Arguments

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Differentiator filter, specified as a dsp.Differentiator System object.

Output Arguments

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Underlying filter used to implement the differentiator, returned as a filter System object.

Version History

Introduced in R2016a

See Also

Objects