Bernese GPS Software Version 5.0 - Bernese GNSS Software

6. Data Preprocessing
The second part of the program performs the epoch-difference solution (options in panel
“MAUPRP 6: Epoch-Difference Solution”, see Section 6.5.2):
------------------------------------------------------------------------
EPOCH DIFFERENCE SOLUTION
------------------------------------------------------------------------
FREQUENCY OF EPOCH DIFF. SOLU.: 3
#OBS. USED FOR EPOCH DIFF. SOLU: 17637
RMS OF EPOCH DIFF. SOLUTION (M): 0.012
COORDINATES NEW-A PRIORI X (M): 0.115 +- 0.028
Y (M): 0.016 +- 0.032
Z (M): 0.107 +- 0.021
------------------------------------------------------------------------
In this example the a priori coordinates were very accurate. The difference between the
a priori coordinates and the new values computed using the triple differences indicates the
accuracy of the epoch-difference solution. The RMS error of the epoch-difference solution
should not be much larger than 2 cm. A higher value indicates
• bad or inconsistent input data (e.g., satellite orbits),
• data problems in an observation file (mark all observations of the time interval with
bad data manually in this observation file or make use of the option “Maximum observedcomputed
value” in panel “MAUPRP 6: Epoch-Difference Solution”), or
• improper settings of the input options (e.g., constraints in the “A priori coordinate/baseline
vector sigmas” are not appropriate).
Now, the epoch-difference residuals are screened. MAUPRP finds a total of 121 cycle slips
in this run (using the default settings in panel “MAUPRP 8: Cycle Slip Detection/Correction”,
see Section 6.5.3):
------------------------------------------------------------------------
CYCLE SLIPS ACCEPTED IN THIS RUN
------------------------------------------------------------------------
NUMBER OF SLIPS IN L1: 30
NUMBER OF SLIPS IN L2: 91
NUMB TYP N EPOCH SAT FRQ WLF SLIP FRAC RES.L3 IONOS
(M) (M)
------------------------------------------------------------------------
1 CLK * 18 ALL 1 1 51988860.
2 CLK * 18 ALL 2 1 40510800.
3 DUA * 51 18 2 1 -8442034. -0.43 -0.046 0.021
5 1 8442034. -0.14
...
17 DUA * 903 6 1 1 -9047063. 0.09 0.010 0.030
18 DUA * 2 1 -7413847. 0.09
5 1 -1633216. -0.02
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