STK SOLIS - LSAS Tec 株式会社...engineers can: • Configure spacecraft components including the...
Transcript of STK SOLIS - LSAS Tec 株式会社...engineers can: • Configure spacecraft components including the...
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STK SOLIS
050118
SOLIS provides a complete spacecraft simulation environment in STK.With SOLIS, developed by Advanced Solutions, Inc. (ASI), mission design engineers can:
• Configurespacecraftcomponentsincluding the sensor, actuator, power, communications, and payload models.
• Rapidlyevaluatesystemtrade-offsandensurethatspacecraftcapabilitiesandconstraintsareconsideredearlyinthelifecycle and are being maintained.
• Createandsavespacecrafttemplatesofoptimalconfigurationsforrapidassessmentofchanges.
• Automatically generate a validated attitude determination and control system configurationtargetedforflightavionics.
• Emulateflightsoftwareusingmissionsequence modeling, real-time commanding, and telemetry.
These capabilities are enabled by the SOLIS architecture, which embeds a desktop versionofASI’son-boardflightsoftware.Thismodularflightsoftwarearchitectureprovidesrapidspacecraftdevelopment,assembly,testand integration. It also provides autonomous on-board operations and enhances integrationandtestwithitshigh-fidelity“testlikeyoufly”capabilities.
Capabilities
Attitude disturbance modeling • Magnetic dipole torque
• Gravity gradient torque
• Solarpressureforceandtorque
• Aerodynamicpressureforceandtorque
Attitude determination modeling
• Sun vector sensors, sun angle sensors, horizon sensors, rate sensors, magnetometers, star trackers
• Perfectattitudedetermination,fixed-gainfilter,Kalmanfilter
Attitude control modeling • Reaction wheels,
magnetic torquers, thrusters
• Custom controllers
• Perfectcontrol,PIDcontrol, phase-plane control
Mode control / guidance• Orbit determination, ephemeris
propagation
• User-definedmodes
• Idle,RateDamp,Hold,SunAcq,Tracking
• Referenceobjects:InertialFixed,SC->Sun,SC->Nadir(detic/centric),SCVelocity,SCMagField,SC->TgtObject,cross(SC->TgtObject,SCVel),TrueNorth,TrueNorth@Tgt,TgtVelocity
• EigenSlew and RendezSlew
Power/thermal modeling• Distance-dependentsolarflux,centralbodyinfrared,albedo
• Finite element thermal. Absorptivity, emissivity, conductivity, shunt
• Solarpanelsize,efficiency,articulation,temperature dependency
• Batterycapacity,charge/ discharge regulation
• Dynamic spacecraft loads. Payload power, communications system power, reaction wheel power
• Payload/communications/datamodeling
• Off,On,Standby
• Define multiple payload modes. Power consumption, data collection
• Transmitters, receivers, transceivers.Datarates, overhead, power consumption
• Datarecordersize,currentstate
• Command/telemetryavailabilitywhenground stations are visible
Target planning The Target Planner enables you to rapidly generate mission sequences to carry out targetingoperations.AspartofafullyintegratedspacecraftmodelinSTK,theTargetPlannerincorporatesactualspacecraftalgorithms and dynamics to determine an optimal targeting plan. This ensures that only real and accurate constraints are used to develop your operations. The Target Planner istightlyintegratedwithSTKaccesstoprovide various target constraints.
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STK SOLIS
050118
Spacecraft design applicationsWhendesigningaspacecraft,SOLIS can help you:
• Designmissionrequirements.
• Analyze various system concepts to determine which can meet mission requirements.
• Analyzeandrefineconceptualdesigns.
• Verifythefinaldesignofsubsystemmodelsand components.
• Provide independent validation and sensitivity/marginanalysis.
Spacecraft operationsSOLIS can be used as a training and analysistoolforgroundoperatorsandmission analysts.
Reporting and visualization of end-to-end spacecraft simulationAsthesatelliterunsthroughthesimulationofoperator commands, you can track it in the followingways:
• Analysis graphs.Forexample,adynamicgraphcanshowwhenthespacecraftstarts to rotate around until its solar panels facethesunandwhenthepanelsstarttogenerate power.
• Spacecraft status summary. Provides informationaboutthecurrentstateofthespacecraft,includingspacecraftmode,attitude data, power system state, and payload/communicationsystemstatus.
• 2D and 3D graphics windows. Provides a visualizationofthespacecraftoperations,including attitude and orbit properties.
Custom development • Generatesframeworkcodebasedonuser-definedXMLdescription
• Builds custom dlls that integrate with SOLIS
• Enablesdevelopmentofcustomcomponents and algorithms