[xenagos]

Hi, i have obtained a set of data from simulation from GISM software...

however, i do not know how to calculate DOP and UERE based on the summary the data given me..the simulation provided me something like this..


PRN
UT
LT
azimuth
elevation
sat.lat
sat.long
S4
sigma_phi
Angular deviation
Coh. length
PLL
DLL
C / N
Proba of LoL
Range error
Faraday rotation
pseudo range
Doppler(Hz)
Distance error
Angular error


1) DOP can be obtained from standard deviation of position of satellite right? but anyone tell me how to get altitude to obtain its ECEF position? =)

2) Is Range Error (typically > 4 and < 15) the UERE ?

Hope that there's someone here who can help me to solve my puzzled mind... thanks!