M_DCB
代码说明：
利用GPS观测和精密星历，采用多项式或球谐函数模型的方法进行建模，能够同时估计接收和卫星DCB，在此基础山计算电离层TEC,为导航单位提供电离层延迟改正(Using GPS observation and precise ephemeris, or methods using spherical harmonic polynomial function model to model, simultaneously estimates the reception and satellite DCB, calculated on the basis of the mountain ionosphere TEC, provide ionospheric corrections for the navigation unit delay)
文件列表：
M_DCB
.....\find_ionex.m,301,2012-03-29
.....\find_sp3.m,204,2012-03-29
.....\Get_arc.m,644,2012-03-29
.....\Get_EA.m,608,2012-02-21
.....\Get_IPP.m,233,2011-12-03
.....\Get_MDCB.m,4010,2012-05-26
.....\Get_P12.m,8643,2012-05-20
.....\GwToDoy.m,580,2011-08-17
.....\IONEX_files
.....\...........\CODG2360.05I,866728,2013-08-02
.....\MDCB_Main.m,2638,2013-08-03
.....\read_ionex.m,1884,2012-04-25
.....\read_rinex.m,18372,2013-09-21
.....\read_sp3.m,2833,2012-05-20
.....\RINEX_files
.....\SDCB_Main.m,2731,2012-06-19
.....\SDCB_REF.mat,1077,2012-05-08
.....\Sites_Info.mat,792,2012-05-08
.....\SP3_files
.....\.........\igs13372.sp3,174242,2013-08-02
.....\.........\igs13373.sp3,174242,2013-08-02
.....\.........\igs13374.sp3,174242,2013-08-02
.....\XYZtoBLH.m,522,2012-02-21
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