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fix: sign failure on impedance calculation

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TT 2019-08-10 13:16:17 +09:00
parent d3396604e5
commit af17abd053
1 changed files with 1 additions and 1 deletions
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plot.c
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@ -571,7 +571,7 @@ gamma2imp(char *buf, int len, const float coeff[2], uint32_t frequency)
// z = (gamma+1)/(gamma-1) * z0
float z0 = 50;
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;
int n;