VE7UWU/sdrangel
1
0
Fork 0
mirror of https://github.com/f4exb/sdrangel.git synced 2025-04-12 06:29:04 -04:00
Code Issues Projects Releases Wiki Activity

Radiosonde: Fix pressure calculation. #2242

Browse Source
This commit is contained in:
Jon Beniston 2025-02-03 13:58:46 +00:00
parent e6b3e50fd2
commit a2f8428352
2 changed files with 11 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
sdrbase/util/radiosonde.cpp
View File

@ -76,6 +76,12 @@ QString RS41Frame::toHex()
return m_bytes.toHex();
}
int16_t RS41Frame::getInt16(const QByteArray ba, int offset) const
{
return (ba[offset] & 0xff)
| ((ba[offset+1] & 0xff) << 8);
}
uint16_t RS41Frame::getUInt16(const QByteArray ba, int offset) const
{
return (ba[offset] & 0xff)
@ -130,7 +136,7 @@ void RS41Frame::decodeMeas(const QByteArray ba)
m_pressureMain = getUInt24(ba, 0x1b);
m_pressureRef1 = getUInt24(ba, 0x1e);
m_pressureRef2 = getUInt24(ba, 0x21);
m_pressureTemp = getUInt16(ba, 0x26) / 100.0f;
m_pressureTemp = getInt16(ba, 0x26) / 100.0f;
}
void RS41Frame::decodeGPSInfo(const QByteArray ba)
@ -187,7 +193,7 @@ static float waterVapourSaturationPressure(float tCelsius)
return p / 100.0f;
}
static float calcT(int f, int f1, int f2, float r1, float r2, float *poly, float *cal)
static float calcT(int f, int f1, int f2, float r1, float r2, const float *poly, const float *cal)
{
/*float g = (float)(f2-f1) / (r2-r1); // gain
float Rb = (f1*r2-f2*r1) / (float)(f2-f1); // offset
@ -219,7 +225,7 @@ static float calcT(int f, int f1, int f2, float r1, float r2, float *poly, float
return tCal;
}
static float calcU(int cInt, int cMin, int cMax, float c1, float c2, float T, float HT, float *capCal, float *matrixCal, float height, float *vectorPCal, float *matrixPCal)
static float calcU(int cInt, int cMin, int cMax, float c1, float c2, float T, float HT, float *capCal, float *matrixCal, float height, const float *vectorPCal, const float *matrixPCal)
{
//qDebug() << "cInt " << cInt << " cMin " << cMin << " cMax " << cMax << " c1 " << c1 << " c2 " << c2 << " T " << T << " HT " << HT << " capCal[0] " << capCal[0] << " capCal[1] " << capCal[1] << "height" << height;
@ -302,7 +308,7 @@ static float calcU(int cInt, int cMin, int cMax, float c1, float c2, float T, fl
return uCal;
}
static float calcP(int f, int f1, int f2, float pressureTemp, float *cal)
static float calcP(int f, int f1, int f2, float pressureTemp, const float *cal)
{
// Convert integer measurement to scale factor
float s = (f-f1) / (float)(f2-f1);

1
sdrbase/util/radiosonde.h
View File

@ -124,6 +124,7 @@ public:
static int getFrameLength(int frameType);
protected:
int16_t getInt16(const QByteArray ba, int offset) const;
uint16_t getUInt16(const QByteArray ba, int offset) const;
uint32_t getUInt24(const QByteArray ba, int offset) const;
uint32_t getUInt32(const QByteArray ba, int offset) const;