Last Modified: June 25, 2019
Filters a signal using a Butterworth highpass filter. Highpass filters pass high frequencies and attenuate low frequencies.
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reset
A Boolean that specifies the initialization of the internal state of the node.
True |
Initializes the internal state to zero. |
False |
Initializes the internal state to the final state from the previous call of this node. |
This node automatically initializes the internal state to zero on the first call and runs continuously until this input is
True.
Default: False
signal
Input signal.
This input accepts the following data types:
-
Waveform
-
Double-precision, floating-point number
-
Complex double-precision, floating-point number
-
1D array of waveforms
-
1D array of double-precision, floating-point numbers
-
1D array of complex double-precision, floating-point numbers
-
2D array of double-precision, floating-point numbers
cutoff frequency
Cutoff frequency of the filter.
Default: 0.125
order
Order of the filter.
Default: 2
error in
Error conditions that occur before this node runs.
The node responds to this input according to standard error behavior.
Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.
error in does not contain an error
|
error in contains an error
|
 |
 |
If no error occurred before the node runs, the node begins execution normally.
If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that
error information as error out.
|
If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.
|
Default: No error
sampling frequency
Sampling frequency in Hz. sampling frequency must be greater than zero.
This input is available only if you wire one of the following data types to signal:
-
Double-precision, floating-point number
-
Complex double-precision, floating-point number
-
1D array of double-precision, floating-point numbers
-
1D array of complex double-precision, floating-point numbers
-
2D array of double-precision, floating-point numbers
Default: 1, which is the normalized sampling frequency
filtered signal
Result of filtering the input signal.
This output can return the following data types:
-
Waveform
-
Double-precision, floating-point number
-
Complex double-precision, floating-point number
-
1D array of waveforms
-
1D array of double-precision, floating-point numbers
-
1D array of complex double-precision, floating-point numbers
-
2D array of double-precision, floating-point numbers
error out
Error information.
The node produces this output according to standard error behavior.
Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.
error in does not contain an error
|
error in contains an error
|
 |
 |
If no error occurred before the node runs, the node begins execution normally.
If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that
error information as error out.
|
If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.
|
Where This Node Can Run:
Desktop OS: Windows
FPGA: Not supported
Web Server: Not supported in VIs that run in a web application
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