Filter Builder
Design filters starting with frequency and magnitude specifications
(filterBuilder
)
Description
The Filter Builder app provides a graphical user interface to
design filters using the fdesign
object. The first step is to
choose the filter response. Based on the response you choose, the algorithm,
constraints, and the design parameter settings appear on the Main
tab of the user interface. You can further specify the precision and data types in the
Data Types tab. The Code
Generation tab contains options for various implementations of the
completed filter design. Once you specify all the filter parameters and the design
algorithm, you can visualize the filter response by clicking on the View
Filter Response button. When you click on this button, FVTool opens to display the magnitude response of the filter. When you have
achieved the desired filter response through iterations of design and analysis, click
OK. When you click OK, the app exports the
filter object to the base workspace. If you select the Use a System object to
implement filter check box in the user interface, the app exports a
filter System object™. For more information on the design process using the Filter
Builder app, see Filter Builder Design Process. For details on
each of the response methods and settings of all the associated parameters, see
filterBuilder
.
Open the Filter Builder App
MATLAB® Toolstrip: On the Apps tab, under Signal Processing and Communications, click the app icon.
MATLAB command prompt: Enter
filterBuilder
.MATLAB command prompt: Enter
filterBuilder(obj)
, whereobj
is an existing filter object. For example, ifobj
is a bandpass filter,filterBuilder(obj)
opens the bandpass filter design dialog. Theobj
object must have been created usingfilterBuilder
or usingfdesign
.MATLAB command prompt: Enter
filterBuilder('response')
to replace response with a supported response method. MATLAB opens a filter design dialog that corresponds to the specified response. For details on the supported response methods, seefilterBuilder
.
Version History
Introduced before R2006a