Link Budgets
Version 7 (J. Simmons, 05/15/2016 12:39 pm)
1 | 1 | J. Simmons | h1. Link Budget References |
---|---|---|---|
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 | 6 | J. Simmons | 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. |
24 | 1 | 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 | 6 | J. Simmons | * "Jan King's AMSAT link budget":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 | 6 | J. Simmons | * "KA9Q JJSat link budget design spreadsheet":http://www.ka9q.net/jjsat/full_links.xls (MS Excel) - another set of right sized calculations for our current needs (came from "conceptual design work for JJSat":http://www.ka9q.net/jjsat/) |
27 | 6 | J. Simmons | * "ConaSat Link Budget Calculations for DTUSat":http://www.crn2.inpe.br/conasat1/projetos_cubesat/projetos/DTUSat%20-%20Technical%20University%20of%20Denmark%20-%20Denmark/DTUSat%20-%20COM%20-%20Link%20Budget.xls (MS Excel) - the history of this spreadsheet is a little unclear, but it is a very clean implementation of the required calculations |
28 | 1 | J. Simmons | |
29 | 1 | J. Simmons | h2. Video Tutorials |
30 | 1 | J. Simmons | |
31 | 1 | J. Simmons | These vidoes are proof of concept video tutorials, and will be replaced with a more polished version as time permits. |
32 | 7 | J. Simmons | |
33 | 7 | J. Simmons | h3. Part 1 - Intro to Satellite Link Budgets |
34 | 7 | J. Simmons | |
35 | 7 | J. Simmons | {{youtube(WLhLYSvHmNY)}} |
36 | 7 | J. Simmons | |
37 | 7 | J. Simmons | h3. Part 2 - Transmission Segment |
38 | 7 | J. Simmons | |
39 | 7 | J. Simmons | {{youtube(x8Jsyc0CYLU)}} |
40 | 7 | J. Simmons | |
41 | 7 | J. Simmons | h3. Part 3 - Trigonometry Refresher |
42 | 7 | J. Simmons | |
43 | 7 | J. Simmons | {{youtube(pexhLdsp9J0)}} |
44 | 7 | J. Simmons | |
45 | 7 | J. Simmons | h3. Part 4 - Propagation Loss |
46 | 7 | J. Simmons | |
47 | 7 | J. Simmons | {{youtube(nFxdoXbmURw8)}} |
48 | 7 | J. Simmons | |
49 | 7 | J. Simmons | h3. Part 5 - Ground Segment |
50 | 7 | J. Simmons | |
51 | 7 | J. Simmons | h3. Part 6 - Putting It All Together |
52 | 7 | J. Simmons | |
53 | 7 | J. Simmons | h3. Part 7 - Software Solutions |
54 | 3 | J. Simmons | |
55 | 3 | J. Simmons | h2. Selected Link Budget Source Document |
56 | 3 | J. Simmons | |
57 | 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=. |