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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /40/CH8/EX8.20/Exa_8_20.sce | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '40/CH8/EX8.20/Exa_8_20.sce')
| -rwxr-xr-x | 40/CH8/EX8.20/Exa_8_20.sce | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/40/CH8/EX8.20/Exa_8_20.sce b/40/CH8/EX8.20/Exa_8_20.sce new file mode 100755 index 000000000..a87b49079 --- /dev/null +++ b/40/CH8/EX8.20/Exa_8_20.sce @@ -0,0 +1,9 @@ +//A four point decimation-in-frequency FFT algorithm
+x=[1 2 1 0];
+w=-%i;
+xdft(1)=x(1)+x(3)+x(2)+x(4);
+xdft(2)=x(1)-x(3)+w*(x(2)-x(4));
+xdft(3)=x(1)+x(3)-x(2)-x(4);
+xdft(4)=x(1)-x(3)-w*(x(2)-x(4));
+XDFT=dft(x,-1);
+xdft,XDFT
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