TABLE 3

Filter Parameterization and Tuning

Parameter typeCountInitial noiseProcess noise (30 s)
Satellite position3 × nsat = 96100 m0 m
Satellite velocity3 × nsat = 96100 m/s0 m/s
SRP dynamical parameters
   1. The new SRP model7 × nsat = 224100 m/s210−13 m/s2
   2. Reduced ECOM model5 × nsat = 160100 m/s210−12 m/s2
Satellite clock offset1 × nsat = 32108 m108 m
Receiver clock offset1 × nsta = 60108 m108 m
Tropospheric zenith delay1 × nsta = 60100 m10−4 m
Ambiguity10 × nsta = 600108 m10−3 m
Total
   1. The new SRP model1168
   2. Reduced ECOM model1104
  • Note: nsat = 32 and nsta = 60.