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J. Simmons, 05/15/2016 12:31 pm
Link Budget References¶
Background Material¶
Example Calculations¶
Much of this material was reviewed with the stakeholders and the IPT at the Sprint 1 Stand Up 3 meeting
Online Forms¶
Online forms are useful for one off calculations, source code/math not necessarily available to Mach 30.- Satellite Link Budget Calculator - simple online form for uplink and downlink calculations
- Satellite Link Budget Calculator page - a mor complete set of calculations for uplink and downlink
- Geostationary Satellite Link Budget Calculations - Geo calculations, not really useful for us, but nice user experience
Spreadsheets¶
Spreadsheets require the correct software to run (typically MS Excel), but Mach 30 can investigate the implementation to use as a source for porting to Python library.- KickSat Ground Station Link Budget (MS Excel) - just about the right level of detail for current work (not surprising since KickSat has a similar level of technical complexity and available technical resources as Ground Sphere)
- Jan King's AMSAT link budget (MS Excel) - the most extensive calculations, too much detail for now, but will likely be useful for future projects
- KA9Q JJSat link budget design spreadsheet (MS Excel) - another set of right sized calculations for our current needs (came from conceptual design work for JJSat)
- ConaSat Link Budget Calculations for DTUSat (MS Excel) - the history of this spreadsheet is a little unclear, but it is a very clean implementation of the required calculations
Video Tutorials¶
These vidoes are proof of concept video tutorials, and will be replaced with a more polished version as time permits.- Link Budgets Part 1, Intro to Satellite Link Budgets
- Link Budget part 2, Transmission Segment
- Link Budget part 3, Trigonometry Refresher
- Link Budget part 4, Propagation Loss
- "Link Budget part 5, Ground Segment":
- "Link Budget part 6, Putting It All Together":
- "Link Budget part 7, Software Solutions":
Selected Link Budget Source Document¶
The Ground Sphere Mk 3 team has decided to build its Python Link Budget library on the calculations used in the KickSat Ground Station Link Budget. This spreadsheet includes nearly all of the required transmission effects and has been verified by comparing its results to manual calculations.