Space Applications

Model and visualize satellite scenarios using a satelliteScenario object; use functions to support Aerospace Blockset™ spacecraft

Generate satellite scenarios to model and visualize satellites in orbit and perform additional analyses, such as computing access with ground stations. You can directly call satelliteScenario and satellliteScenarioViewer objects. To create objects for other classes, use their object creation functions (for example, satellite for a Satellite object and groundStation for a GroundStation object).

Objects

`satelliteScenario`	Satellite scenario
`satelliteScenarioViewer`	Create viewer for satellite scenario
`Access`	Access analysis object belonging to scenario
`ConicalSensor`	Conical sensor object belonging to satellite scenario
`CoordinateAxes`	Coordinate axes triad graphic object
`FieldOfView`	Field of view object belonging to satellite scenario
`Gimbal`	Gimbal object belonging to satellite scenario
`GroundStation`	Ground station object belonging to satellite scenario
`Satellite`	Satellite in satellite scenario
`GroundTrack`	Ground track object belonging to satellite in scenario

Functions

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Object Creation

`access`	Add access analysis objects to satellite scenario
`conicalSensor`	Add conical sensor to satellite scenario
`coordinateAxes`	Visualize coordinate axes triad of satellite scenario assets
`fieldOfView`	Visualize field of view of conical sensor
`groundStation`	Add ground station to satellite scenario
`gimbal`	Add gimbal to satellite or ground station
`groundTrack`	Add ground track object to satellite in scenario
`satellite`	Add satellites to satellite scenario
`walkerDelta`	Create Walker-Delta constellation in satellite scenario
`walkerStar`	Create Walker-Star constellation in satellite scenario

Satellite

`access`	Add access analysis objects to satellite scenario
`aer`	Calculate azimuth angle, elevation angle, and range of another satellite or ground station in NED frame
`coordinateAxes`	Visualize coordinate axes triad of satellite scenario assets
`groundTrack`	Add ground track object to satellite in scenario
`orbitalElements`	Orbital elements of satellites in scenario
`pointAt`	Point satellite at target
`states`	Obtain position and velocity of satellite

Ground Station

`access`	Add access analysis objects to satellite scenario
`aer`	Calculate azimuth angle, elevation angle, and range of another satellite or ground station in NED frame
`coordinateAxes`	Visualize coordinate axes triad of satellite scenario assets

Conical Sensor

`access`	Add access analysis objects to satellite scenario
`aer`	Calculate azimuth angle, elevation angle, and range of another satellite or ground station in NED frame
`coordinateAxes`	Visualize coordinate axes triad of satellite scenario assets
`fieldOfView`	Visualize field of view of conical sensor

Gimbals

`coordinateAxes`	Visualize coordinate axes triad of satellite scenario assets
`gimbalAngles`	Steering angles of gimbal
`pointAt`	Point satellite at target

Access Analysis

`accessIntervals`	Intervals during which access status is true
`accessPercentage`	Percentage of time when access exists between first and last node in access analysis
`accessStatus`	Status of access between first and last node defining access analysis

Scenario Simulation

`advance`	Move simulation forward by one sample time
`hide`	Hide satellite scenario entity from viewer
`play`	Play satellite scenario simulation results on viewer
`restart`	Restart simulation from beginning
`show`	Show object in satellite scenario viewer

Viewer

`camheading`	Set or get heading angle of camera for Satellite Scenario Viewer
`camheight`	Set or get height of camera for Satellite Scenario Viewer
`campitch`	Set or get pitch angle of camera for Satellite Scenario Viewer
`campos`	Set or get position of camera for Satellite Scenario Viewer
`camroll`	Set or get roll angle of camera for Satellite Scenario Viewer
`camtarget`	Set camera target for Satellite Scenario Viewer
`hideAll`	Hide all graphics in satellite scenario viewer
`showAll`	Show all graphics in viewer

Transformations

`ecef2eci`	Position and velocity vectors in Earth-centered inertial mean-equator mean-equinox
`eci2ecef`	Position, velocity, and acceleration vectors in Earth-centered Earth-fixed (ECEF) coordinate system
`ijk2keplerian`	Keplerian orbit elements using position and velocity vectors
`keplerian2ijk`	Position and velocity vectors in geocentric equatorial coordinate system using Keplerian orbit elements
`siderealTime`	Greenwich mean and apparent sidereal times

Space Weather

`aeroReadSpaceWeatherData`	Output MAT-file of space weather data
`fluxSolarAndGeomagnetic`	Extract solar flux and geomagnetic field data

Topics

Satellite Scenario Key Concepts
Understand commonly encountered terms in satellite scenario visualization.
Satellite Scenario Overview
You can build a complete satellite scenario simulation using functions and objects.
Model, Visualize, and Analyze Satellite Scenario
Model satellites in orbit, analyze access between the satellites and the ground stations, and visualize the fields of view and ground tracks of the satellites.

Featured Examples

Modeling Satellite Constellations Using Ephemeris Data

Add time-stamped ephemeris data for a constellation of 24 satellites to a satellite scenario for access analysis.

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Comparison of Orbit Propagators

Compare the orbits predicted by the Two-Body-Keplerian, Simplified General Perturbations-4 (SGP4) and Simplified Deep-Space Perturbations-4 (SDP4) orbit propagators.

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Satellite Constellation Access to Ground Station

Set up access analysis between a ground station and conical sensors onboard a constellation of satellites.

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Detect and Track LEO Satellite Constellation with Ground Radars

Import a Two-Line Element (TLE) file of a satellite constellation, simulate radar detections of the constellation, and track the constellation.

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Multi-Hop Path Selection Through Large Satellite Constellation

Determine the path through a large constellation.

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Modeling Custom Satellite Attitude and Gimbal Steering

Point satellite or gimbal in satellite scenario using logged orientation data from timetable or timeseries.

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Analyze Access Between a Satellite Constellation and an Aircraft

Model an aircraft trajectory and a Walker-Delta satellite constellation using Aerospace Toolbox, and analyze and visualize the computed access between the aircraft and satellite constellation.

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Satellite Conjunction Finder

Find potential events of close proximity or conjuctions of two satellites.

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