%%%GPS是否有信號，GPS信號種類數和分別是那幾類???
if?length（findstr（line（1:1）‘G‘））~=0?&&?strcmp（sys‘GPS‘）==1
????????obs_Sys（1）=1;
????????obs_Num=str2num（line（2:6））;
????for?i=1:obs_Num?obs_type（i）=0;end
????for?i=1:obs_Num
??????if?????strcmp（line（i*4+4:i*4+6）‘C1C‘）==1
????????obs_type（i）=1;
??????elseif?strcmp（line（i*4+4:i*4+6）‘L1C‘）==1
????????obs_type（i）=2;
??????elseif?strcmp（line（i*4+4:i*4+6）‘D1C‘）==1
????????obs_type（i）=3;
??????elseif?strcmp（line（i*4+4:i*4+6）‘S1C‘）==1
????????obs_type（i）=4;
??????elseif?strcmp（line（i*4+4:i*4+6）‘C2P‘）==1
????????obs_type（i）=5;
??????elseif?strcmp（line（i*4+4:i*4+6）‘L2P‘）==1
????????obs_type（i）=6;
??????elseif?strcmp（line（i*4+4:i*4+6）‘D2P‘）==1
????????obs_type（i）=7;
??????elseif?strcmp（line（i*4+4:i*4+6）‘S2P‘）==1
????????obs_type（i）=8;
??????end
????end?
end

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????842??2015-12-14?11:00??single_point?_position\GPS.m

?????文件????????603??2015-12-03?21:17??single_point?_position\gps2mjd.m

?????文件????????534??2015-12-12?19:20??single_point?_position\mjd2gps.m

?????文件???????1030??2015-12-03?21:10??single_point?_position\mjd2ymd.m

?????文件???????1630??2015-12-15?02:52??single_point?_position\ParameterAll.m

?????文件???????3783??2015-12-12?17:03??single_point?_position\rxnav.m

?????文件???????3259??2015-12-14?11:15??single_point?_position\rxobse.m

?????文件???????3486??2015-12-12?18:11??single_point?_position\rxobsh.m

?????文件??????12125??2015-12-22?21:25??single_point?_position\Single_Point_Positioning.m

?????文件???????5469??2015-12-26?22:14??single_point?_position\Student_5_GPS_Positioning.m

?????文件????????350??2015-12-28?22:56??single_point?_position\Untitled2.m

?????文件???????1338??2015-12-12?19:24??single_point?_position\ymd2mjd.m

?????目錄??????????0??2016-01-24?19:39??single_point?_position

-----------?---------??----------?-----??----

????????????????34449????????????????????13