能实现GPS伪距单点定位

				// Position.h: interface for the CPosition class.
				//
				//////////////////////////////////////////////////////////////////////
				
				#if !defined(AFX_POSITION_H__5FB0F777_0857_47E4_97CE_1CEC0599EAF1__INCLUDED_)
				#define AFX_POSITION_H__5FB0F777_0857_47E4_97CE_1CEC0599EAF1__INCLUDED_
				
				#if _MSC_VER > 1000
				#pragma once
				#endif // _MSC_VER > 1000
				
				#include "ObsFile.h"
				#include "NavFile.h"
				#include "Result.h"
				
				#include "matrix.h"
				
				#ifndef _NO_NAMESPACE
				using namespace std;
				using namespace math;
				#define STD std
				#else
				#define STD
				#endif
				
				#ifndef _NO_TEMPLATE
				typedef matrix Matrix;
				#else
				typedef matrix Matrix;
				#endif
				
				#ifndef _NO_EXCEPTION
				#  define TRYBEGIN()	try {
				#  define CATCHERROR()	} catch (const STD::exception& e) { \
				cerr 				#else
				#  define TRYBEGIN()
				#  define CATCHERROR()
				#endif     //矩阵类预编译
				
				const double GM = 3.9860047e+14;
				const double F  = -4.442807633e-10;
				const double f1 = 1575.42;
				const double f2 = 1227.6;
				const double c  = 299792458.458;
				const double we  = 7.2921151467e-5;
				
				class CPosition  
				{
				public:
					bool       PointPosition(CObsFile& obsFile, CNavFile& navFile, CCoor& sitCoor, double&  Tr);
					double     GetIonDelay(const double& P1, const double& P2);
					double     GetTropDelay(CCoor& satCoor, CCoor& sitCoor);
					bool       GetSatCoor(CTime obsTime, CTime& sendTime, OneNavData& navData, CCoor& sitCoor, CCoor& satCoor, double& satClkBias);
				    bool       ComputeOneEpoch(ObsFileData& obsData, NavFileData navData, CCoor& sitCoor, double &Tr);
				
					bool       GetObsFileData(CObsFile& obsFile);
					bool       GetNavFileData(CNavFile& navFile);
					NavFileData GetNavData(CTime& obsTime);
				    OneNavData GetOneNavData(string& satPRN, NavFileData& navData);
				   
					CPosition();
					virtual ~CPosition();
				private:
					double    ComSatClkBias(CTime& sendTime, OneNavData navData);
					bool      ComputeSatCoor(CTime& sendTime, CCoor& satCoor, OneNavData navData );
					bool      ComputeFactors(CCoor& sitCoor, CCoor& satCoor, double& deltaTs,double& Tr, double tropDelay, double ionDelay, double p1, double& l, double&m, double& n, double& W);
					
					int                    obsTypeNum;
					vector         obsTypeList;
					vector    obsFileData;
				
					vector    navFileData;
				    int                    mark;
				
					OneEpochResult         oneEpochResult;
					Result                 result;
				};
				
				#endif // !defined(AFX_POSITION_H__5FB0F777_0857_47E4_97CE_1CEC0599EAF1__INCLUDED_)