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  • 大小: 54KB
    文件類型: .zip
    金幣: 2
    下載: 0 次
    發布日期: 2021-06-04
  • 語言: C/C++
  • 標簽: NORAD??SGP4??SDP4??

資源簡介

此包中的文件提供SGP4和SDP4的c++算法實現。這兩個軌道模型分別用于近地對象和深空對象,廣泛應用于衛星跟蹤軟件,能夠產生非常準確的結果。

資源截圖

代碼片段和文件信息

//
//?cEci.cpp
//
//?Copyright?(c)?2002-2013?Michael?F.?Henry
//?Version?01/2013
//
#include?“stdafx.h“

#include?“globals.h“
#include?“cEci.h“
#include?“coord.h“

namespace?Zeptomoby?
{
namespace?OrbitTools?
{

//////////////////////////////////////////////////////////////////////
//?Class?cEci
//////////////////////////////////////////////////////////////////////
cEci::cEci(const?cVector?&pos?const?cVector?&vel)
???:?m_Position?(pos)
?????m_Velocity?(vel)
{
}

//?Creates?a?instance?of?the?class?from?geodetic?coordinates.
//
//?Assumes?the?Earth?is?an?oblate?spheroid.
//?Reference:?The?1992?Astronomical?Almanac?page?K11
//?Reference:?www.celestrak.com?(Dr.?T.S.?Kelso)
cEci::cEci(const?cGeo&?geo?cJulian?date)
{
???double?lat?=?geo.LatitudeRad();
???double?lon?=?geo.LongitudeRad();
???double?alt?=?geo.AltitudeKm();

???//?Calculate?Local?Mean?Sidereal?Time?(theta)
???double?theta?=?date.ToLmst(lon);
???double?c?=?1.0?/?sqrt(1.0?+?F?*?(F?-?2.0)?*?sqr(sin(lat)));
???double?s?=?sqr(1.0?-?F)?*?c;
???double?achcp?=?(XKMPER_WGS72?*?c?+?alt)?*?cos(lat);

???m_Position.m_x?=?achcp?*?cos(theta);?????????//?km
???m_Position.m_y?=?achcp?*?sin(theta);?????????//?km
???m_Position.m_z?=?(XKMPER_WGS72?*?s?+?alt)?*?sin(lat);???//?km
???m_Position.m_w?=?sqrt(sqr(m_Position.m_x)?+??//?range?km
?????????????????????????sqr(m_Position.m_y)?+?
?????????????????????????sqr(m_Position.m_z));??

???//?Determine?velocity?components?due?to?earth‘s?rotation
???double?mfactor?=?TWOPI?*?(OMEGA_E?/?SEC_PER_DAY);

???m_Velocity.m_x?=?-mfactor?*?m_Position.m_y;??//?km?/?sec
???m_Velocity.m_y?=??mfactor?*?m_Position.m_x;??//?km?/?sec
???m_Velocity.m_z?=?0.0;????????????????????????//?km?/?sec
???m_Velocity.m_w?=?sqrt(sqr(m_Velocity.m_x)?+??//?range?rate?km/sec^2
?????????????????????????sqr(m_Velocity.m_y));
}

//////////////////////////////////////////////////////////////////////
//?Class?cEciTime
//////////////////////////////////////////////////////////////////////

cEciTime::cEciTime(const?cEci?&eci?cJulian?date)?:
???cEci(eci)
???m_Date(date)
{
}

cEciTime::cEciTime(const?cVector?&pos?const?cVector?&vel?cJulian?date)?:
???cEci(pos?vel)
???m_Date(date)
{
}

cEciTime::cEciTime(const?cGeo?&geo?cJulian?date)
???:?cEci(geo?date)
?????m_Date(date)
{
}

cEciTime::cEciTime(const?cGeoTime?&geo)?
???:?cEci(geo?geo.Date())
?????m_Date(geo.Date())
{
}

}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2013-01-12?08:10??orbitTools\core\
?????文件????????2462??2013-01-05?16:24??orbitTools\core\cEci.cpp
?????文件????????1403??2013-01-05?16:29??orbitTools\core\cEci.h
?????文件????????7655??2012-12-09?09:09??orbitTools\core\cJulian.cpp
?????文件????????2535??2013-01-05?16:25??orbitTools\core\cJulian.h
?????文件????????3297??2013-01-09?21:37??orbitTools\core\coord.cpp
?????文件????????2905??2013-01-09?21:18??orbitTools\core\coord.h
?????文件????????9352??2011-10-25?20:43??orbitTools\core\core.vcxproj
?????文件????????2525??2011-09-25?14:39??orbitTools\core\core.vcxproj.filters
?????文件?????????379??2013-01-05?08:37??orbitTools\core\coreLib.h
?????文件????????3908??2012-12-09?08:00??orbitTools\core\cSite.cpp
?????文件????????1147??2012-12-09?08:00??orbitTools\core\cSite.h
?????文件???????11883??2013-01-02?21:04??orbitTools\core\cTLE.cpp
?????文件????????5256??2012-12-09?08:59??orbitTools\core\cTLE.h
?????文件????????1802??2010-12-18?15:47??orbitTools\core\cVector.cpp
?????文件?????????745??2013-01-05?19:12??orbitTools\core\cVector.h
?????文件????????1087??2011-05-18?21:30??orbitTools\core\exceptions.h
?????文件????????1424??2010-12-18?15:47??orbitTools\core\globals.cpp
?????文件????????2196??2013-01-05?16:29??orbitTools\core\globals.h
?????文件????????8462??2013-01-11?20:02??orbitTools\core\revHistory.txt
?????文件?????????291??2010-12-18?15:47??orbitTools\core\stdafx.cpp
?????文件?????????244??2013-01-05?16:29??orbitTools\core\stdafx.h
?????目錄???????????0??2013-01-12?08:10??orbitTools\orbit\
?????文件????????9350??2012-12-09?08:10??orbitTools\orbit\cNoradbase.cpp
?????文件????????1485??2012-12-09?09:14??orbitTools\orbit\cNoradbase.h
?????文件???????22468??2013-01-12?07:51??orbitTools\orbit\cNoradSDP4.cpp
?????文件????????2212??2012-12-09?08:14??orbitTools\orbit\cNoradSDP4.h
?????文件????????3790??2013-01-05?19:13??orbitTools\orbit\cNoradSGP4.cpp
?????文件?????????830??2012-12-09?08:14??orbitTools\orbit\cNoradSGP4.h
?????文件????????6486??2013-01-05?16:30??orbitTools\orbit\cOrbit.cpp
?????文件????????3384??2012-12-09?08:15??orbitTools\orbit\cOrbit.h
............此處省略15個文件信息

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