diff options
Diffstat (limited to 'fir_window_hamming.awk')
| -rw-r--r-- | fir_window_hamming.awk | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fir_window_hamming.awk b/fir_window_hamming.awk index 51eb0d8..95bd827 100644 --- a/fir_window_hamming.awk +++ b/fir_window_hamming.awk @@ -1,7 +1,7 @@ #!/usr/bin/awk -f
### fir_window_hamming.awk
-# generate a Hamming window
+# generate a Hamming raised cosine FIR window
# R.W. Hamming, 'Digital Filters': H = '0.23 0.54 0.23'
# https://en.wikipedia.org/wiki/Window_function provides a few values for the
# 'a0' and 'a1' parameters of the raised cosine.
@@ -29,7 +29,7 @@ BEGIN { # window interval goes from -M to M
M = 0.5*(N - 1)
- pi = 4.0*atan2(1.0,1.0)
+ pi = 4.0*atan2(1.0, 1.0)
for (n=-M; n<=M; n++) {
if (N > 1 && M > 0) {
|