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Diffstat (limited to 'macros/firtype.sci')
| -rw-r--r-- | macros/firtype.sci | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/macros/firtype.sci b/macros/firtype.sci index 4fa1122..4a17e4e 100644 --- a/macros/firtype.sci +++ b/macros/firtype.sci @@ -1,6 +1,27 @@ //Author: Parthasarathi Panda //parthasarathipanda314@gmail.com function typ=firtype(b) +//This function identifies Type of linear phase FIR filter + +//Calling Sequence +//t = firtype(b) + +//Parameters +//t: type of an FIR filter +//b: Filter coefficients + +//Description +//t = firtype(b) determines the type, t, of an FIR filter with coefficients b. t can be 1, 2, 3, or 4. The filter must be real and have linear phase. + +//Examples +//b=[9.2762e-05 9.5482e-02 4.0443e-01 4.0443e-01 9.5482e-02 9.2762e-05] +//firtype(b) +//Output : 2 + +//b=[-1 -2 0 2 1] +//firtype(b) +//Output : 3 + if (type(b)~=1) then error('check input type'); end |