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dBuV axis option for spectrum analyzer

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This commit is contained in:
Jan Käberich 2022-03-15 15:52:57 +01:00
parent cece0080ed
commit 754ded1d08
5 changed files with 17 additions and 1 deletions
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7
Software/PC_Application/Util/util.cpp
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@ -65,3 +65,10 @@ double Util::distanceToLine(QPointF point, QPointF l1, QPointF l2, QPointF *clos
std::complex<double> Util::SparamToImpedance(std::complex<double> d) {
return Preferences::getInstance().Acquisition.refImp * (1.0 + d) / (1.0 - d);
}
double Util::dBmTodBuV(double dBm)
{
double uVpower = 0.000001*0.000001/Preferences::getInstance().Acquisition.refImp;
double dBdiff = 10*log10(uVpower*1000);
return dBm - dBdiff;
}

1
Software/PC_Application/Util/util.h
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@ -31,6 +31,7 @@ namespace Util {
static inline double SparamTodB(std::complex<double> d) {
return SparamTodB(abs(d));
}
double dBmTodBuV(double dBm);
static inline double SparamToDegree(std::complex<double> d) {
return (arg(d) * 180.0 / M_PI);
}