Link Budgets
Version 5 (J. Simmons, 05/15/2016 12:26 pm)
| 1 | 1 | J. Simmons | h1. Link Budget References |
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| 2 | 1 | J. Simmons | |
| 3 | 2 | J. Simmons | {{>toc}} |
| 4 | 2 | J. Simmons | |
| 5 | 1 | J. Simmons | h2. Background Material |
| 6 | 1 | J. Simmons | |
| 7 | 1 | J. Simmons | * "Link Budget Calculation":http://www.piscespacific.org/livesite/files/Link_Budget_Calculation.pdf |
| 8 | 1 | J. Simmons | * "Tutorial on Basic Link Budget Analysis":http://www.sss-mag.com/pdf/an9804.pdf |
| 9 | 1 | J. Simmons | |
| 10 | 1 | J. Simmons | h2. Example Calculations |
| 11 | 1 | J. Simmons | |
| 12 | 4 | J. Simmons | Much of this material was reviewed with the stakeholders and the IPT at the "Sprint 1 Stand Up 3 meeting":https://docs.google.com/document/d/17Wc4sMqlUissR5am6ANDcKP-psRQ41ysxOV0vrcgHJA/pub |
| 13 | 4 | J. Simmons | |
| 14 | 5 | J. Simmons | h3. Online Forms |
| 15 | 5 | J. Simmons | |
| 16 | 5 | J. Simmons | Online forms are useful for one off calculations, source code/math not necessarily available to Mach 30. |
| 17 | 5 | J. Simmons | * "Satellite Link Budget Calculator":http://www.satsig.net/linkbugt.htm - simple online form for uplink and downlink calculations |
| 18 | 5 | J. Simmons | * "Satellite Link Budget Calculator page":http://www.tutorialsweb.com/satcom/satellite-link-budget-calculator.htm - a mor complete set of calculations for uplink and downlink |
| 19 | 5 | J. Simmons | * "Geostationary Satellite Link Budget Calculations (Downlink)":http://www.satcom-services.com/VSAT/downlink.html - Geo calculations, not really useful for us, but nice user experience |
| 20 | 5 | J. Simmons | |
| 21 | 5 | J. Simmons | h3. Spreadsheets |
| 22 | 5 | J. Simmons | |
| 23 | 5 | J. Simmons | Spreadsheets require the correct software to run, but Mach 30 can investigate the implementation to use as a source for porting to Python library |
| 24 | 5 | J. Simmons | * "KickSat Ground Station Link Budget":https://github.com/kicksat/groundstation/blob/master/Link%20Budgets.xlsx (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) |
| 25 | 5 | J. Simmons | * "Jan King's AMSAT link budget +extensive+":http://www.amsatuk.me.uk/iaru/AMSAT-IARU_Link_Model_Rev2.5.3.xls (MS Excel) - the most extensive calculations, too much detail for now, but will likely be useful for future projects |
| 26 | 5 | J. Simmons | * "KA9Q JJSat link budget design spreadsheet":http://www.ka9q.net/jjsat/full_links.xls - another set of right sized calculations for our current needs (came from "conceptual design work for JJSat":http://www.ka9q.net/jjsat/ |
| 27 | 1 | J. Simmons | |
| 28 | 1 | J. Simmons | h2. Video Tutorials |
| 29 | 1 | J. Simmons | |
| 30 | 1 | J. Simmons | These vidoes are proof of concept video tutorials, and will be replaced with a more polished version as time permits. |
| 31 | 1 | J. Simmons | * "Link Budgets Part 1, Intro to Satellite Link Budgets":https://youtu.be/WLhLYSvHmNY |
| 32 | 1 | J. Simmons | * "Link Budget part 2, Transmission Segment":https://youtu.be/x8Jsyc0CYLU |
| 33 | 1 | J. Simmons | * "Link Budget part 3, Trigonometry Refresher":https://youtu.be/pexhLdsp9J0 |
| 34 | 1 | J. Simmons | * "Link Budget part 4, Propagation Loss":https://youtu.be/nFxdoXbmURw |
| 35 | 1 | J. Simmons | * "Link Budget part 5, Ground Segment": |
| 36 | 1 | J. Simmons | * "Link Budget part 6, Putting It All Together": |
| 37 | 1 | J. Simmons | * "Link Budget part 7, Software Solutions": |
| 38 | 3 | J. Simmons | |
| 39 | 3 | J. Simmons | h2. Selected Link Budget Source Document |
| 40 | 3 | J. Simmons | |
| 41 | 3 | J. Simmons | 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":https://github.com/kicksat/groundstation/blob/master/Link%20Budgets.xlsx. This spreadsheet includes nearly all of the required transmission effects and has been verified by "comparing its results to manual calculations":http://opendesignengine.net/dmsf_files/523?download=. |