Main Content

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.

Satellite link budget app session window showing the default configuration and results.

Open Satellite Link Budget Analyzer App

On theAppstab in the MATLAB®Toolstrip, underSignal Processing and Communications, click the app iconApp Gallery icon for the Satellite Link Budget Analyzer app. Alternatively, you can open the app by enteringsatelliteLinkBudgetAnalyzerat 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.

See Also