Gamit10.71解算北斗数据

Gamit10.71解算北斗数据

参考陈超老师博文：.html

- Beidou processing now uses L6/C6 (B3 at 1268.53 MHz) rather than L7/C7 (B2b at 1207.140 MHz) as the lower-frequency observable to accommodate the tracking configuration of most of the current GNSS receivers providing public data.Based on a sampling of 230 RINEX files from the archives, about 50% include only L6/C6 compared with about 5% that include only L7/C7. The higher-frequency observable will remain L2/C2 (B1-2 at 1561.098 MHz) since very few of the public RINEX files contain L1/C1 from the B1 at 1575.42 MHz transmitted by BDS 3 satellites. If L7/C7 is the only observak present (i.e, no L6/C6),GAMIT will try to process the data along with L7/C7 receivers but there may be ambiguity resoluion issues. User should data files and process only those sites with the same frequency data.  There are still some issues with clock estimates for Beidou data and pre-fit edting in autlcn.

查看能下载到的中国及周边IGS站Rinex3数据：

选择ULAB、URUM、WUH2、POL2四个站，广播星历采用单北斗brdc，精密星历使用codm，处理成功。