2.11.11 dfilterfcf(Pro)

1 Brief Information
2 Additional Information
3 Command Line Usage
4 X-Function Execution Options
5 Variables
6 Examples
7 Related X-Functions

Brief Information

Import or export MATLAB cdf file with IIR filter coefficients

Additional Information

Minimum Origin Version Required: Origin 9.0 SR0. This feature is for OriginPro only.

Command Line Usage

dfilterfcf fcf:= “D:\test.fcf” data:=6:7;

dfilterfcf operation:=exp struct:=sos fcf:= “D:\test.fcf”  data:=4:10 format:=hex;

X-Function Execution Options

Please refer to the page for additional option switches when accessing the x-function from script

Variables

Display Name	Variable Name	I/O and Type	Default Value	Description
Operation	operation	Input int	0	Specify the operation mode. Option list: imp: Import Import MATLAB fcf file exp: Export Export MATLAB fcf file
Filter Structure	struct	Input int	0	Specify the structure form of IIR filter. Option list: sos: SOS Matrix Export the IIR filter as the second order section(SOS) parameter form. coef: Coefficient Export the IIR filter as the numerator coefficients and the denominator coefficients. abcd: State-Space Form Export the IIR filter as the state-space form.
MATLAB fcf File Name	fcf	Input string		Specify the path and the name of the fcf file that will be imported/exported.
Filter Model Data	data	Input Range		Specify the filter model data.
Export Format	format	Input int	0	Specify the export format. Option list: dec: Decimal Export the fcf file as the decimal format. bin: Binary Export the fcf file as the binary format. hex: Hexadecimal Export the fcf file as the binary format

Examples

This example will show how to import emg recording.dat into Origin, then how to use dfilter X-Function to create an IIR filter, and at last how to export it as an fcf file.

newbook;
impasc fname:=system.path.program$+"samples\signal processing\emg recording.dat";
wks.colsel(2,1);
dfilter -r 2 iy:=2 sample:=2000 wp:=200 ws:=400 abcd:=[<input>]<input>;
dfilterfcf operation:=exp struct:=abcd fcf:=D:\abcd.fcf data:=4:17;