Table 1 The rank deficiencies information, including involved parameters, sizes, and S-basis for PPP–RTK network
From: Investigating GNSS PPP–RTK with external ionospheric constraints
Rank deficiency involved parameter | Size | S-basis |
|---|---|---|
\({\text{d}}t_{r}\) and \({\text{d}}t^{s}\) | 1 | \({\text{d}}t_{p}\) |
\(B_{r,i}^{{}}\) and \(B_{i}^{s}\) | f | \(B_{p,i}^{{}}\) |
\(b_{r,i}^{{}}\) and \(b_{i}^{s}\) | f | \(b_{p,i}^{{}}\) |
\({\text{d}}t_{r \ne p}\), \(B_{r \ne p,i}^{{}}\), and \(d_{r \ne p,i}^{{}}\) | n-1 | \(B_{{r \ne p,{\text{IF}}}}^{{}}\) |
\({\text{d}}t^{s}\), \(B_{i}^{s}\), and \(b_{i}^{s}\) | m | \(B_{{{\text{IF}}}}^{s}\) |
\(b_{i}^{s}\) and \(N_{r,i}^{s}\) | f·m | \(N_{p,i}^{s}\) |
\(b_{r \ne p,i}^{{}}\) and \(N_{r \ne p,i}^{s}\) | f·(n-1) | \(N_{r \ne p,i}^{q}\) |
\(T_{r}^{s}\) and \({\text{d}}t^{s}\) | 1 | \(T_{p}^{s}\) |
\(I_{r,i}^{s}\), \(B_{r \ne p,i}^{{}}\), and \(b_{r \ne p,i}^{{}}\) | n-1 | \(B_{{r \ne p,{\text{GF}}}}^{{}}\) |
\(I_{r,i}^{s}\), \(B_{i}^{s}\), and \(b_{i}^{s}\) | m | \(B_{{{\text{GF}}}}^{s}\) |