Table 2 The useful combination schemes for GPS and BDS EWL AR based on the geometry-free models, for which the single-epoch success rates are computed. In computation, we take σ ϕ = 5 mm, σ p = 0.5 m and ι = 0.3 m
From: Review of triple-frequency GNSS: ambiguity resolution, benefits and challenges
system | combination | schemes | λ(i,j,k)[m] | μ(i,j,k) + μ(l,m,n) | \( {\sigma}_{{\widehat{a}}_{\left(i,j,k\right)}}^{\mathrm{SE}} \) [cycle] | Ps [%] |
|---|---|---|---|---|---|---|
GPS | ϕ (0,1,-1) | p (0,1,1) | 5.861 | 0 | 0.067 | 100 |
ϕ (1,0,-1) | p (1,0,1) | 0.751 | 0 | 0.477 | 100 | |
ϕ (1,-6,5) | p (1,1,1) | 3.256 | 1.360 | 0.183 | 98.01 | |
ϕ (1,-6,5) | p (1,1,0) | 3.256 | 1.209 | 0.193 | 97.86 | |
ϕ (1,-5,4) | p (1,1,1) | 2.093 | 0.773 | 0.192 | 97.97 | |
ϕ (1,-5,4) | p (1,1,0) | 2.093 | 0.622 | 0.215 | 97.50 | |
BDS | ϕ (0,1,-1) | p (0,1,1) | 4.884 | 0 | 0.078 | 100 |
ϕ (1,0,-1) | p (1,0,1) | 1.025 | 0 | 0.349 | 84.86 | |
ϕ (1,4,-5) | p (1,1,1) | 6.371 | 2.015 | 0.143 | 99.77 | |
ϕ (1,4,-5) | p (1,1,0) | 6.371 | 1.945 | 0.145 | 99.73 | |
ϕ (1,3,-4) | p (1,1,1) | 2.765 | 0.745 | 0.150 | 99.73 | |
ϕ (1,3,-4) | p (1,1,0) | 2.765 | 0.675 | 0.168 | 99.42 |