robin/two_pole_dc_pass
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

first attempt at zg. Did not make much difference although increased the

Browse Source 
gain. Perhaps the zeros needs to be closed in frequency to the dc line
These ones were at 7/8 which is 29 degrees approx.
Probably not enough to make a real difference.
This commit is contained in:
Robin. P. Clark 2019-09-10 09:42:57 +01:00
parent ce997c0cc7
commit 2647f7e4d4
2 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
tp.gpt
View File

@ -3,7 +3,7 @@
#plot "tp.dat" using 1:3 title "input", "tp.dat" using 1:5 title "two pole", "tp.dat" using 1:6 title "34LAG", "tp.dat" using 1:7 title "78LAG"
#plot "tp.dat" using 1:3 title "input" with linespoints, "tp.dat" using 1:5 title "two pole" with linespoints, "tp.dat" using 1:7 title "78LAG" with linespoints, "tp.dat" using 1:9 title "78LAG TWICE" with linespoints, "tp.dat" using 1:11 title "two pole 15 16"
plot "tp.dat" using 1:3 title "input" with linespoints, "tp.dat" using 1:5 title "two pole" with linespoints, "tp.dat" using 1:11 title "two pole 15 16" with linespoints, "tp.dat" using 1:13 title "zero only" with linespoints
plot "tp.dat" using 1:3 title "input" with linespoints, "tp.dat" using 1:5 title "two pole" with linespoints, "tp.dat" using 1:15 title "zero only^2" with linespoints, "tp.dat" using 1:17 title "zero only^3" with linespoints,"tp.dat" using 1:19 title "zero only^4" with linespoints
plot "tp.dat" using 1:3 title "input" with linespoints, "tp.dat" using 1:5 title "two pole" with linespoints, "tp.dat" using 1:15 title "7 8 two pole ZG" with linespoints, "tp.dat" using 1:17 title "zero only^3" with linespoints,"tp.dat" using 1:19 title "zero only^4" with linespoints
!sleep 10
!sleep 10

5
two_pole_7_8.c
View File

@ -80,6 +80,9 @@ two_pole_7_8 ( int16_t input ) {
}
// Added zero guard. tried a pair of zeros near unit circle
// 7/8 in ADJ, i.e hyp = 1 so on unit circle.
//
int16_t /* squared version of LAG_7_8 */
two_pole_7_8_zg ( int16_t input ) { // with zero guard
@ -287,7 +290,7 @@ int main () {
zo2 = zero_only_2 (val);
zo2 = two_pole_7_8_zg(val); // zero_only_2 (val);
zo3 = zero_only_3 (val);
zo4 = zero_only_4 (val);