ttrftech/NanoVNA
1
0
Fork 0
mirror of https://github.com/ttrftech/NanoVNA.git synced 2025-12-06 03:31:59 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity

fix: sign failure on impedance calculation

Browse source
This commit is contained in:
TT 2019-08-10 13:16:17 +09:00
parent d3396604e5
commit af17abd053
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
plot.c
View file

@ -571,7 +571,7 @@ gamma2imp(char *buf, int len, const float coeff[2], uint32_t frequency)
// z = (gamma+1)/(gamma-1) * z0 // z = (gamma+1)/(gamma-1) * z0
float z0 = 50; float z0 = 50;
float d = z0 / ((1-coeff[0])*(1-coeff[0])+coeff[1]*coeff[1]); float d = z0 / ((1-coeff[0])*(1-coeff[0])+coeff[1]*coeff[1]);
float zr = ((1+coeff[0])*(1-coeff[0]) + coeff[1]*coeff[1]) * d; float zr = ((1+coeff[0])*(1-coeff[0]) - coeff[1]*coeff[1]) * d;
float zi = 2*coeff[1] * d; float zi = 2*coeff[1] * d;
int n; int n;