Get Started with Satellite Link Budget Analyzer App
TheSatellite Link Budget Analyzerapp is an interactive tool for creating, configuring, analyzing, and visualizing link budgets for satellite communications. This section describes the some of the app features. For more information and examples that demonstrate use of the app, see theSatellite Link Budget Analyzerdocumentation page.
Open Satellite Link Budget Analyzer App
On theAppstab in the MATLAB®Toolstrip, underSignal Processing and Communications, click the app icon. Alternatively, you can open the app by enteringsatelliteLinkBudgetAnalyzer
at the MATLAB command prompt.
Budget Analyzer Toolstrip
The app opens to show theBUDGET ANALYZERtoolstrip and docked tabs. TheBUDGET ANALYZERtoolstrip containsFILE,定制, andANALYZEribbons. The default main work area tabs are arranged to shown the link canvas, entity (ground station, link, and satellite) properties, results, and plots. You can move the tabbed panes by dragging to rearrange as desired.
Link Canvas
In theLink Canvaspane, you can select an individual ground station, link, or satellite entity to bring it into focus in the associated property pane. The default canvas defines these three satellite communication links.
LinkL1is an uplink between ground stationG1and satelliteS1
LinkL3is an crosslink between satelliteS3and satelliteS4
LinkL2is a downlink between satelliteS2and ground stationG2
Properties
Select theGround Station,Link, orSatellitetab to view the pane and adjust settings of the input properties for each type of entity. Select the entity of interest in theLink Canvas选项卡将专注于实体的关联d property tab. You can adjust the property settings for the entity in focus only.
Link Budget
When you clickAnalyze, the link budget results are computed and displayed in theLink Budgetpane. The factory default results compute distance, elevation, transmit effective radiated power (EIRP), polarization loss, free-space pathloss (FSPL), received isotropic power, carrier-to-receiver-noise-density ratio (C/N0), received energy per bit to noise power spectral density ratio (Eb/N0), and overall link margin.
Click theCustomize Input/Outputbutton to open the view or customize the configured input properties and output computations.
Visualization Options
View free-space pathloss in 2-D line plots and link margins in 2-D contour plots that characterize the links. When opened the app shows the default scenario, including link budget results and these plots:
Free-space pathloss in a 2-D line plot labeledFSPL
Link margin for linksL1,L2, andL3in individual 2-D contour plots labeledMargin - L1,Margin - L2, andMargin - L3, respectively
Customize Input/Output Toolstrip
On theBUDGET ANALYZERtoolstrip, click theCustomize Input/Outputbutton to open the定制INPUT/OUTPUTtoolstrip. The定制INPUT/OUTPUTtoolstrip enables you to review, add, delete, and customize the properties for entity and the formulas for the computation of results.
In theADD NEW PROPERTYribbon you can customize the app by defining and adding new properties.
In theADD NEW RESULTribbon you can customize the app by defining new formulas and adding them as new results.
In thePropertiespane, you can adjust or delete properties.
In theResultspane you can adjust or delete results.