digitalFilter
Digital filter
Description
Usedesignfilt
to design and editdigitalFilter
objects.
Use
designfilt
in the formd = designfilt(resp,Name,Value)
to design a digital filter,d
, with response typeresp
. Customize the filter further usingName,Value
pairs.Use
designfilt
in the formdesignfilt(d)
to edit an existing filter,d
.Note
This is the only way to edit an existing
digitalFilter
object. Its properties are otherwise read-only.Use
filter
in the formdataOut = filter(d,dataIn)
to filter a signal with adigitalFilter
d
. The input can be a double- or single-precision vector. It can also be a matrix with as many columns as there are input channels.UseFVToolto visualize a
digitalFilter
.These functions take
digitalFilter
objects as input.
Object Functions
Filtering
Filter Analysis
Function | Description |
---|---|
Casts the coefficients of a |
|
Generates a Simulink®filter block corresponding to a |
|
Returns the filter order of a |
|
Returns the type (1, 2, 3, or 4) of an FIR |
|
回报或情节的频率响应 |
|
Opens the Filter Visualization Tool and displays the magnitude response of a |
|
Returns or plots the group delay response of a |
|
Returns or plots the impulse response of a |
|
Returns the length of the impulse response of a |
|
Returns a character array with information about a |
|
Returns |
|
Returns |
|
Returns |
|
Returns |
|
Returns |
|
Returns |
|
Returns |
|
Returns |
|
回报或情节相位延迟response of a |
|
Returns or plots the (unwrapped) phase response of a |
|
Casts the coefficients of a |
|
Returns the state-space representation of a |
|
Returns or plots the step response of a |
|
Returns the transfer function representation of a |
|
Returns or plots the zero-phase response of a |
|
Returns the zero-pole-gain representation of a |
|
Displays the poles and zeros of the transfer function represented by a |
Examples
See Also
FVTool|designfilt
|double
|fftfilt
|filt2block
|filter
|filtfilt
|filtord
|firtype
|freqz
|grpdelay
|impz
|impzlength
|info
|isallpass
|isdouble
|isfir
|islinphase
|ismaxphase
|isminphase
|issingle
|isstable
|phasedelay
|phasez
|single
|ss
|stepz
|tf
|zerophase
|zpk
|zplane