Research Article
A Simple Three-Dimensional Matrix Method for Global Constellation Intrasatellite Link Topological Design
Table 1
Analysis of ISL hops and link number.
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Constellations Walker
| Different orbit plane | Coorbit plane |
Hops/cycle |
ISLs/cycle |
Remark | | ISL numbers | Hops (multiplication of two items) | Hops | ISL numbers | | Pairs of ISLs/epoch | ISLs/diff-orbit* | Combinations of diff-orbit | ISL types** | ISLs/coorbit
| Orbit plane number |
| | Walker9/3/2 | 1 | 3 | 3 | 3 | 3 | 1 | 3 | 12 | 36 | | | Walker18/6/2 | 3 | 3 | 3 | 5 | 3 | 1 | 6 | 18 | 153 | | | Walker24/3/2 | 1 | 8 | 8 | 3 | 7 | 4 | 3 | 31 | 276 | Compass | | Walker24/6/1 | 3 | 4 | 4 | 5 | 3 | 2 | 6 | 23 | 276 | GPS | | Walker25/5/1 | 2 | 5 | 5 | 5 | 5 | 2 | 5 | 30 | 300 | | | Walker27/9/0 | 4 | 3 | 3 | 9 | 3 | 1 | 9 | 30 | 351 | | | Walker72/6/1 | 3 | 12 | 12 | 5 | 11 | 6 | 6 | 71 | 2556 | | | Walker77/7/1 | 3 | 11 | 11 | 7 | 11 | 5 | 7 | 88 | 2926 | Iridium | | Walker66/6/1 | 3 | 11 | 11 | 5 | 11 | 5 | 6 | 66 | 2145 | Iridium | | Walker120/10/1 | 5 | 12 | 12 | 9 | 11 | 6 | 10 | 119 | 7140 | NeLS | | Walker288/12/1 | 6 | 24 | 24 | 11 | 23 | 12 | 12 | 287 | 459504 | Teledesic |
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“diff-orbit” denotes the different orbit plane.
**“ISL types” denotes the ISL connection types for different orbit during one traversal cycle.
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