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Moved Coord into seperate files.

feature/19
Daniel Warner 2011-04-23 12:18:51 +01:00
parent dcb4469507
commit 3df6db72d2
13 changed files with 168 additions and 285 deletions
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41
CoordGeodetic.cpp Normal file
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@ -0,0 +1,41 @@
#include "CoordGeodetic.h"
CoordGeodetic::CoordGeodetic(const CoordGeodetic& b) {
lat_ = b.lat_;
lon_ = b.lon_;
alt_ = b.alt_;
}
CoordGeodetic& CoordGeodetic::operator =(const CoordGeodetic& b) {
if (this != &b) {
lat_ = b.lat_;
lon_ = b.lon_;
alt_ = b.alt_;
}
return (*this);
}
bool CoordGeodetic::operator ==(const CoordGeodetic& b) const {
if (lat_ == b.lat_ &&
lon_ == b.lon_ &&
alt_ == b.alt_) {
return true;
} else {
return false;
}
}
bool CoordGeodetic::operator !=(const CoordGeodetic& b) const {
if (lat_ == b.lat_ &&
lon_ == b.lon_ &&
alt_ == b.alt_) {
return false;
} else {
return true;
}
}

67
CoordGeodetic.h Normal file
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@ -0,0 +1,67 @@
#ifndef COORDGEODETIC_H_
#define COORDGEODETIC_H_
class CoordGeodetic {
public:
CoordGeodetic()
: lat_(0.0), lon_(0.0), alt_(0.0) {
}
/*
* radians
*/
CoordGeodetic(double latitude, double longitude, double altitude)
: lat_(latitude), lon_(longitude), alt_(altitude) {
}
CoordGeodetic(const CoordGeodetic& g);
virtual ~CoordGeodetic() {
};
CoordGeodetic & operator =(const CoordGeodetic& b);
bool operator ==(const CoordGeodetic& b) const;
bool operator !=(const CoordGeodetic& b) const;
void SetLatitude(const double latitude) {
lat_ = latitude;
}
void SetLongitude(const double longitude) {
lon_ = longitude;
}
void SetAltitude(const double altitude) {
alt_ = altitude;
}
double GetLatitude() const {
return lat_;
}
double GetLongitude() const {
return lon_;
}
double GetAltitude() const {
return alt_;
}
private:
/*
* radians (north positive, south negative)
*/
double lat_;
/*
* radians (east positive, west negative)
*/
double lon_;
/*
* kilometers
*/
double alt_;
};
#endif

42
Coord.cpp → CoordTopographic.cpp
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@ -1,44 +1,4 @@
#include "Coord.h" #include "CoordTopographic.h"
CoordGeodetic::CoordGeodetic(const CoordGeodetic& b) {
lat_ = b.lat_;
lon_ = b.lon_;
alt_ = b.alt_;
}
CoordGeodetic& CoordGeodetic::operator =(const CoordGeodetic& b) {
if (this != &b) {
lat_ = b.lat_;
lon_ = b.lon_;
alt_ = b.alt_;
}
return (*this);
}
bool CoordGeodetic::operator ==(const CoordGeodetic& b) const {
if (lat_ == b.lat_ &&
lon_ == b.lon_ &&
alt_ == b.alt_) {
return true;
} else {
return false;
}
}
bool CoordGeodetic::operator !=(const CoordGeodetic& b) const {
if (lat_ == b.lat_ &&
lon_ == b.lon_ &&
alt_ == b.alt_) {
return false;
} else {
return true;
}
}
CoordTopographic::CoordTopographic(const CoordTopographic& b) { CoordTopographic::CoordTopographic(const CoordTopographic& b) {

66
Coord.h → CoordTopographic.h
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@ -1,67 +1,5 @@
#ifndef COORD_H_ #ifndef COORDTOPOGRAPHIC_H_
#define COORD_H_ #define COORDTOPOGRAPHIC_H_
class CoordGeodetic {
public:
CoordGeodetic()
: lat_(0.0), lon_(0.0), alt_(0.0) {
}
/*
* radians
*/
CoordGeodetic(double latitude, double longitude, double altitude)
: lat_(latitude), lon_(longitude), alt_(altitude) {
}
CoordGeodetic(const CoordGeodetic& g);
virtual ~CoordGeodetic() {
};
CoordGeodetic & operator =(const CoordGeodetic& b);
bool operator ==(const CoordGeodetic& b) const;
bool operator !=(const CoordGeodetic& b) const;
void SetLatitude(const double latitude) {
lat_ = latitude;
}
void SetLongitude(const double longitude) {
lon_ = longitude;
}
void SetAltitude(const double altitude) {
alt_ = altitude;
}
double GetLatitude() const {
return lat_;
}
double GetLongitude() const {
return lon_;
}
double GetAltitude() const {
return alt_;
}
private:
/*
* radians (north positive, south negative)
*/
double lat_;
/*
* radians (east positive, west negative)
*/
double lon_;
/*
* kilometers
*/
double alt_;
};
class CoordTopographic { class CoordTopographic {
public: public:

2
Eci.h
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@ -1,7 +1,7 @@
#ifndef ECI_H_ #ifndef ECI_H_
#define ECI_H_ #define ECI_H_
#include "Coord.h" #include "CoordGeodetic.h"
#include "Vector.h" #include "Vector.h"
#include "Julian.h" #include "Julian.h"

3
Observer.h
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@ -1,7 +1,8 @@
#ifndef OBSERVER_H_ #ifndef OBSERVER_H_
#define OBSERVER_H_ #define OBSERVER_H_
#include "Coord.h" #include "CoordGeodetic.h"
#include "CoordTopographic.h"
#include "Julian.h" #include "Julian.h"
#include "Eci.h" #include "Eci.h"

8
Rewrite.vcxproj
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@ -74,12 +74,13 @@
</Link> </Link>
</ItemDefinitionGroup> </ItemDefinitionGroup>
<ItemGroup> <ItemGroup>
<ClCompile Include="Coord.cpp" /> <ClCompile Include="CoordGeodetic.cpp" />
<ClCompile Include="CoordTopographic.cpp" />
<ClCompile Include="Eci.cpp" /> <ClCompile Include="Eci.cpp" />
<ClCompile Include="Globals.cpp" /> <ClCompile Include="Globals.cpp" />
<ClCompile Include="Julian.cpp" /> <ClCompile Include="Julian.cpp" />
<ClCompile Include="main.cpp" />
<ClCompile Include="Observer.cpp" /> <ClCompile Include="Observer.cpp" />
<ClCompile Include="RunTest.cpp" />
<ClCompile Include="SatelliteOrbit.cpp" /> <ClCompile Include="SatelliteOrbit.cpp" />
<ClCompile Include="SGP4.cpp" /> <ClCompile Include="SGP4.cpp" />
<ClCompile Include="Timespan.cpp" /> <ClCompile Include="Timespan.cpp" />
@ -87,7 +88,8 @@
<ClCompile Include="Vector.cpp" /> <ClCompile Include="Vector.cpp" />
</ItemGroup> </ItemGroup>
<ItemGroup> <ItemGroup>
<ClInclude Include="Coord.h" /> <ClInclude Include="CoordGeodetic.h" />
<ClInclude Include="CoordTopographic.h" />
<ClInclude Include="Eci.h" /> <ClInclude Include="Eci.h" />
<ClInclude Include="Globals.h" /> <ClInclude Include="Globals.h" />
<ClInclude Include="Julian.h" /> <ClInclude Include="Julian.h" />

24
Rewrite.vcxproj.filters
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@ -15,9 +15,6 @@
</Filter> </Filter>
</ItemGroup> </ItemGroup>
<ItemGroup> <ItemGroup>
<ClCompile Include="Coord.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="Julian.cpp"> <ClCompile Include="Julian.cpp">
<Filter>Source Files</Filter> <Filter>Source Files</Filter>
</ClCompile> </ClCompile>
@ -27,9 +24,6 @@
<ClCompile Include="Globals.cpp"> <ClCompile Include="Globals.cpp">
<Filter>Source Files</Filter> <Filter>Source Files</Filter>
</ClCompile> </ClCompile>
<ClCompile Include="main.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="Tle.cpp"> <ClCompile Include="Tle.cpp">
<Filter>Source Files</Filter> <Filter>Source Files</Filter>
</ClCompile> </ClCompile>
@ -48,11 +42,17 @@
<ClCompile Include="SGP4.cpp"> <ClCompile Include="SGP4.cpp">
<Filter>Source Files</Filter> <Filter>Source Files</Filter>
</ClCompile> </ClCompile>
<ClCompile Include="CoordGeodetic.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="CoordTopographic.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="RunTest.cpp">
<Filter>Source Files</Filter>
</ClCompile>
</ItemGroup> </ItemGroup>
<ItemGroup> <ItemGroup>
<ClInclude Include="Coord.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="Julian.h"> <ClInclude Include="Julian.h">
<Filter>Header Files</Filter> <Filter>Header Files</Filter>
</ClInclude> </ClInclude>
@ -83,5 +83,11 @@
<ClInclude Include="SGP4.h"> <ClInclude Include="SGP4.h">
<Filter>Header Files</Filter> <Filter>Header Files</Filter>
</ClInclude> </ClInclude>
<ClInclude Include="CoordGeodetic.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="CoordTopographic.h">
<Filter>Header Files</Filter>
</ClInclude>
</ItemGroup> </ItemGroup>
</Project> </Project>

13
testmain.cpp → RunTest.cpp
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@ -1,9 +1,10 @@
#include "Julian.h" #include "Julian.h"
#include "Tle.h" #include "Tle.h"
#include "SGDP4.h" #include "SGP4.h"
#include "Globals.h" #include "Globals.h"
#include "Observer.h" #include "Observer.h"
#include "Coord.h" #include "CoordGeodetic.h"
#include "CoordTopographic.h"
#include <list> #include <list>
#include <string> #include <string>
@ -14,11 +15,11 @@
void RunTle(Tle tle, double start, double end, double inc) { void RunTle(Tle tle, double start, double end, double inc) {
double current = start; double current = start;
SGDP4 model; SGP4 model;
model.SetTle(tle); model.SetTle(tle);
bool running = true; bool running = true;
bool first_run = true; bool first_run = true;
std::cout << " " << std::setprecision(0) << tle.GetNoradNumber() << " xx" << std::endl; std::cout << " " << std::setprecision(0) << tle.NoradNumber() << " xx" << std::endl;
while (running) { while (running) {
try { try {
double val; double val;
@ -142,7 +143,7 @@ void RunTest(const char* infile) {
*/ */
if (!got_first_line) { if (!got_first_line) {
if (Tle::IsValidLine(line, Tle::LINE_ONE)) { if (Tle::IsValidLine(line, 1)) {
/* /*
* store line and now read in second line * store line and now read in second line
*/ */
@ -180,7 +181,7 @@ void RunTest(const char* infile) {
/* /*
* following line must be the second line * following line must be the second line
*/ */
if (Tle::IsValidLine(line2, Tle::LINE_TWO)) { if (Tle::IsValidLine(line2, 2)) {
Tle tle("Test", line1, line2); Tle tle("Test", line1, line2);
RunTle(tle, 0.0, 1440.0, 120.0); RunTle(tle, 0.0, 1440.0, 120.0);
} else { } else {

47
SatelliteOrbit.cpp
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@ -8,48 +8,43 @@ SatelliteOrbit::~SatelliteOrbit(void) {
void SatelliteOrbit::SetTle(const Tle& tle) { void SatelliteOrbit::SetTle(const Tle& tle) {
sgdp4_.SetTle(tle); sgp4_.SetTle(tle);
} }
bool SatelliteOrbit::IsGeostationary() { bool SatelliteOrbit::IsGeostationary() {
#if 0
if (sgdp4_.MeanMotion() == 0.0) if (sgp4_.MeanMotion() == 0.0)
return true; return true;
/* /*
radius of apogee radius of apogee
the distance from the centre of the planet to the point in the orbit furthest away from the planet the distance from the centre of the planet to the point in the orbit furthest away from the planet
*/ */
const double apogee_altitude = sgdp4_.RecoveredSemiMajorAxis() * (1.0 + sgdp4_.Eccentricity()) - Globals::XKMPER(); const double apogee_altitude = sgp4_.RecoveredSemiMajorAxis() * (1.0 + sgp4_.Eccentricity()) - Globals::XKMPER();
/* /*
* check if almost same speed as earth * check if almost same speed as earth
* or altitude is over 35000 km * or altitude is over 35000 km
*/ */
if (fabs(sgdp4_.MeanMotion() - Globals::OMEGA_E()) < 0.0005 || apogee_altitude > 35000) if (fabs(sgp4_.MeanMotion() - Globals::OMEGA_E()) < 0.0005 || apogee_altitude > 35000)
return true; return true;
else else
#endif
return false; return false;
} }
unsigned int SatelliteOrbit::GetOrbitNumber(const Julian& jul) const{ unsigned int SatelliteOrbit::GetOrbitNumber(const Julian& jul) const {
#if 0
double diff = jul.SpanMin(sgdp4_.Epoch()); double diff = jul.SpanMin(sgp4_.Epoch());
return (unsigned int)floor((sgdp4_.MeanMotion() * 1440.0 / Globals::TWOPI() + return static_cast<unsigned int> (floor((sgp4_.MeanMotion() * 1440.0 / Globals::TWOPI() +
diff * sgdp4_.BStar() * Globals::AE()) * diff + diff * sgp4_.BStar() * Globals::AE()) * diff +
sgdp4_.MeanAnomoly() / Globals::TWOPI()) + sgdp4_.OrbitNumber() - 1.0; sgp4_.MeanAnomoly() / Globals::TWOPI())) + sgp4_.OrbitNumber() - 1;
#endif
return 0;
} }
#if 0 double SatelliteOrbit::Footprint(const double& altitude) {
/* same formulas, but the one from predict is nicer */
//sat->footprint = 2.0 * xkmper * acos (xkmper/sat->pos.w); if (altitude > 0)
sat->footprint = 12756.33 * acos(xkmper / (xkmper + sat->alt)); return 2.0 * Globals::XKMPER() * acos(Globals::XKMPER() / (Globals::XKMPER() + altitude));
age = sat->jul_utc - sat->jul_epoch; else
sat->orbit = (long) floor((sat->tle.xno * xmnpda / twopi + return 0.0;
age * sat->tle.bstar * ae) * age + }
sat->tle.xmo / twopi) + sat->tle.revnum - 1;
#endif

4
SatelliteOrbit.h
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@ -15,8 +15,10 @@ public:
unsigned int GetOrbitNumber(const Julian& jul) const; unsigned int GetOrbitNumber(const Julian& jul) const;
static double Footprint(const double& altitude);
private: private:
SGP4 sgdp4_; SGP4 sgp4_;
}; };
#endif #endif

3
Timespan.cpp
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@ -5,6 +5,9 @@
Timespan::Timespan(void) { Timespan::Timespan(void) {
} }
/*
* time_span is days and fraction of a day
*/
Timespan::Timespan(const double time_span) { Timespan::Timespan(const double time_span) {
time_span_ = time_span; time_span_ = time_span;
} }

133
main.cpp
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@ -1,133 +0,0 @@
#include "Julian.h"
#include "Tle.h"
#include "SGP4.h"
#include "Globals.h"
#include "Observer.h"
#include "Coord.h"
#include <list>
#include <string>
#include <iomanip>
void FindSatellite(const Julian& time_start, const Julian& time_end) {
/*
* half a second
*/
static const double delta = 1.0 / (60.0 * 60.0 * 24.0 * 2.0);
//while (fabs(time_end - time_start) > delta) {
//}
}
void GeneratePassList(const CoordGeodetic& geo, const SGP4& model, const Julian& date) {
Observer obs(geo);
Eci eci;
model.FindPosition(eci, date);
CoordTopographic topo = obs.GetLookAngle(eci);
/*
* set start and end date
*/
Julian time0 = date;
Julian time1 = date;
time1.AddDay(10.0);
/*
* step throw period with 1 minute increments
*/
for (Julian jd = date; jd <= time1; jd.AddMin(1.0)) {
}
}
int main() {
Tle tle = Tle("UK-DMC 2 ",
"1 35683U 09041C 11089.11558659 .00000272 00000-0 54146-4 0 8712",
"2 35683 98.0762 348.1067 0001434 99.8921 260.2456 14.69414094 89293");
CoordGeodetic geo(Globals::Deg2Rad(51.360242), Globals::Deg2Rad(0.101473), 0.07);
SGP4 sgp4_model;
sgp4_model.SetTle(tle);
Julian date;
GeneratePassList(geo, sgp4_model, date);
return 0;
}
#if 0
http://olifantasia.com/projects/gnuradio/mdvh/weather_sat/weather_sat_scripts_without_capture_files_2010061701/decoding/poes-weather-hrpt-decoder/hrpt-decoder-1.0.0.2/satellite/predict/
xmnpda = 1440.0
/* same formulas, but the one from predict is nicer */
//sat->footprint = 2.0 * xkmper * acos (xkmper/sat->pos.w);
sat->footprint = 12756.33 * acos (xkmper / (xkmper+sat->alt));
age = sat->jul_utc - sat->jul_epoch;
sat->orbit = (long) floor((sat->tle.xno * xmnpda/twopi +
age * sat->tle.bstar * ae) * age +
sat->tle.xmo/twopi) + sat->tle.revnum - 1;
bool TSat::IsGeostationary(void)
{
/* This function returns a 1 if the satellite
appears to be in a geostationary orbit
Circular orbit at an altitude of 35 800 km over the equator.
A satellite moving with the Earth's rotation in a geostationary
orbit has a period of 23 hours, 56 minutes and 4 seconds.
*/
double sma, aalt;
if(meanmo == 0.0)
return true;
sma = 331.25*exp(log(1440.0/meanmo)*(2.0/3.0));
aalt = sma*(1.0+eccn)-xkmper;
if(fabs(meanmo-omega_E) < 0.0005 || // allmost same speed as earth
aalt > 35000) // altitude is over 35000 km
return true;
else
return false;
}
// latitude in radians
bool TSat::DoesRise(double lat)
{
/* This function returns a true if the satellite can ever rise
above the horizon of the ground station.
*/
double lin, sma, apogee;
bool rc = false;
if(meanmo == 0.0)
return rc;
else {
lin = incl;
if(lin >= 90.0)
lin=180.0-lin;
sma = 331.25*exp(log(1440.0/meanmo)*(2.0/3.0));
apogee = sma*(1.0+eccn)-xkmper;
if((acos2(xkmper/(apogee+xkmper))+lin*deg2rad) > fabs(lat))
rc = true;
else
rc = false;
}
return rc;
}
#endif