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Scenario Generation and Visualization

Simulation, analysis, and visualization of satellites in orbit

Generate satellite scenarios to model and visualize satellites in orbit and to perform additional analyses such as computing access with ground stations.

Objects

`satelliteScenario`	Satellite scenario (Since R2021a)
`satelliteScenarioViewer`	Create viewer for satellite scenario (Since R2021a)
`Satellite`	Satellite in satellite scenario (Since R2021a)
`GroundStation`	Ground station object belonging to satellite scenario (Since R2021a)
`ConicalSensor`	Conical sensor object belonging to satellite scenario (Since R2021a)
`GroundTrack`	Ground track object belonging to satellite in scenario (Since R2021a)
`Transmitter`	Transmitter object belonging to satellite scenario (Since R2021a)
`Receiver`	Receiver object belonging to satellite scenario (Since R2021a)
`Pattern`	Radiation pattern visualization (Since R2021b)
`Gimbal`	Gimbal object belonging to satellite scenario (Since R2021a)
`Access`	Access analysis object belonging to scenario (Since R2021a)
`FieldOfView`	Field of view object belonging to satellite scenario (Since R2021a)
`Link`	Link analysis object belonging to Transmitter (Since R2021a)

Functions

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Satellite Scenario, Satellites, and Ground Stations

`aer`	Calculate azimuth angle, elevation angle, and range of another satellite or ground station in NED frame (Since R2021a)
`advance`	Move simulation forward by one sample time (Since R2022a)
`dopplershift`	Calculate Doppler shift at target asset in satellite scenario (Since R2023a)
`hide`	Hide satellite scenario entity from viewer (Since R2021a)
`latency`	Calculate propagation delay from one asset to another asset (Since R2023a)
`orbitalElements`	Orbital elements of satellites in scenario (Since R2021a)
`play`	Play satellite scenario simulation results on viewer (Since R2021a)
`restart`	Restart simulation from beginning (Since R2022a)
`show`	Show object in satellite scenario viewer (Since R2021a)
`skyplot`	Plot satellite azimuth and elevation data (Since R2021a)
`states`	Obtain position and velocity of satellite (Since R2021a)

Viewer

`campitch`	Set or get pitch angle of camera for Satellite Scenario Viewer (Since R2021a)
`camroll`	Set or get roll angle of camera for Satellite Scenario Viewer (Since R2021a)
`campos`	Set or get position of camera for Satellite Scenario Viewer (Since R2021a)
`camheading`	Set or get heading angle of camera for Satellite Scenario Viewer (Since R2021a)
`camheight`	Set or get height of camera for Satellite Scenario Viewer (Since R2021a)
`camtarget`	Set camera target for Satellite Scenario Viewer (Since R2021a)
`hideAll`	Hide all graphics in satellite scenario viewer (Since R2021a)
`showAll`	Show all graphics in viewer (Since R2021a)

Access Analysis

`accessPercentage`	Percentage of time when access exists between first and last node in access analysis (Since R2021a)
`accessIntervals`	Intervals during which access status is true (Since R2021a)
`accessStatus`	Status of access between first and last node defining access analysis (Since R2021a)

Transmitters, Receivers, and Link Analysis

`gaussianAntenna`	Add Gaussian antennas (Since R2021a)
`ebno`	Eb/No at final node of link (Since R2021a)
`linkPercentage`	Percentage of time when link between first and last node in link analysis is closed (Since R2021a)
`linkStatus`	Status of link closure between first and last node (Since R2021a)
`linkIntervals`	Intervals during which link is closed (Since R2021a)
`sigstrength`	Calculate received signal strength at last node of link (Since R2022b)

Gimbals

`gimbalAngles`	Steering angles of gimbal (Since R2021a)
`pointAt`	Point satellite at target (Since R2021a)

Topics

Satellite Scenario Basics
Build complete satellite scenario simulation.
Satellite Scenario Key Concepts
Learn common satellite scenario visualization terms.

Featured Examples

Coverage Maps for Satellite Constellation

Display coverage maps for a region of interest using a satellite scenario and 2-D maps. A coverage map for satellites includes received power over an area for a downlink to ground-based receivers within the area.

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Aircraft-to-Satellite Communication for ADS-B Out

Examines the Automatic Dependent Surveillance–Broadcast (ADS-B) Out connectivity of a flight from JFK International Airport in New York to L.F. Wade International Airport in Bermuda. The ADS-B Out system can connect to a variety of targets including airports and the Iridium NEXT satellite constellation. As a result, even while the aircraft does not have a direct line of sight with any ground station due to the Earth curvature over open water, the satellite ADS-B connection allows the aircraft to still provide continuous attitude, GPS position, and status to all other aircraft and airports interested in the aircraft state. The ADS-B system responds to the strongest ADS-B update initiator. The omnidirectional antennas on the top and bottom of the aircraft broadcast out to initiate the ADS-B update.

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Multi-Hop Satellite Communications Link Between Two Ground Stations

Set up multihop link between two ground stations.

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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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Comparison of Orbit Propagators

Compare the orbits predicted by the Two-Body-Keplerian, SGP4, and SDP4 orbit propagators.

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Calculate Latency and Doppler in a Satellite Scenario

Model and calculate the latency and doppler frequencies between the satellite and the ground station.

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Modeling Satellite Constellations Using Ephemeris Data

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

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Interference from Satellite Constellation on Communications Link

Analyze interference on a downlink from a constellation of satellites.

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Estimate GNSS Receiver Position with Simulated Satellite Constellations

Track the position of a ground vehicle using a simulated Global Navigation Satellite System (GNSS) receiver.

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Multi-Hop Path Selection Through Large Satellite Constellation

Select the multi-hop path through large satellite constellation to gain access between two ground stations.

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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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Location-Based Analysis of Visible GPS Satellites

Analyze the visible global positioning system (GPS) satellites from a particular location using satelliteScenario.

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