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some experiments with TDR math operations

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This commit is contained in:
Jan Käberich 2020-11-28 19:32:18 +01:00
parent 8e661aecd6
commit a7ff3d60fb
19 changed files with 589 additions and 77 deletions
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66
Software/PC_Application/Traces/Math/tracemath.cpp
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@ -1,5 +1,9 @@
#include "tracemath.h"
#include "medianfilter.h"
#include "tdrbandpass.h"
#include "tdrlowpass.h"
TraceMath::TraceMath()
{
input = nullptr;
@ -7,11 +11,73 @@ TraceMath::TraceMath()
error("Invalid input");
}
TraceMath *TraceMath::createMath(TraceMath::Type type)
{
switch(type) {
case Type::MedianFilter:
return new Math::MedianFilter();
case Type::TDRlowpass:
return new Math::TDRLowpass();
case Type::TDRbandpass:
return new Math::TDRBandpass();
default:
return nullptr;
}
}
TraceMath::TypeInfo TraceMath::getInfo(TraceMath::Type type)
{
TypeInfo ret = {};
switch(type) {
case Type::MedianFilter:
ret.name = "Median filter";
ret.explanationWidget = Math::MedianFilter::createExplanationWidget();
break;
case Type::TDRlowpass:
ret.name = "TDR (lowpass)";
ret.explanationWidget = Math::TDRLowpass::createExplanationWidget();
break;
case Type::TDRbandpass:
ret.name = "TDR (bandpass)";
ret.explanationWidget = Math::TDRBandpass::createExplanationWidget();
break;
default:
break;
}
return ret;
}
TraceMath::Data TraceMath::getSample(unsigned int index)
{
return data.at(index);
}
TraceMath::Data TraceMath::getInterpolatedSample(double x)
{
Data ret;
if(data.size() == 0 || x < data.front().x || x > data.back().x) {
ret.y = std::numeric_limits<std::complex<double>>::quiet_NaN();
ret.x = std::numeric_limits<double>::quiet_NaN();
} else {
auto it = lower_bound(data.begin(), data.end(), x, [](const Data &lhs, const double x) -> bool {
return lhs.x < x;
});
if(it->x == x) {
ret = *it;
} else {
// no exact match, needs to interpolate
auto high = *it;
it--;
auto low = *it;
double alpha = (x - low.x) / (high.x - low.x);
ret.y = low.y * (1 - alpha) + high.y * alpha;
ret.x = x;
}
}
return ret;
}
unsigned int TraceMath::numSamples()
{
return data.size();