Path: FormationFlying/Control
% Analyze the performance of relative orbit control in eccentric orbits
This script compares the performance of two different control methods
for relative orbit control in a highly eccentric orbit. The two methods
compared are:
- LPEccentric (relative dynamics expressed in Hills frame)
- LPEccentricGVE (relative dynamics expressed with Gauss var. eqs.)
The linearization error is much higher when the relative dynamics is
based in Hills frame. This results in noticable error in the controlled
trajectory.
In addition, this script also compares the relative trajectories when
the maneuver is simulated in different ways. The following types of
simulations are compared
- Discrete relative dynamics in Hills frame.
- Discrete relative dynamics with differential elements using Gauss'
variational equations.
- Keplerian orbits patched together with impulsive delta-v's
- Numerical integration in ECI frame
Since version 7.
------------------------------------------------------------------------
See also Delay, QHills, QTForm, TimeGUI, Mag, RK4TI,
EccGeometry_Structure, DiscreteGVE, FFEccDiscreteHills, LPEccentric,
LPEccentricGVE, ECI2Hills, FFEccDeltaElem2Hills, FFEccGoals2Hills,
FFEccHills2DeltaElem, ApplyDeltaV, RVOrbGenDV, OrbRate, RVOrbGen, El2RV,
M2Nu, M2NuAbs, Period
------------------------------------------------------------------------
%
--------------------------------------------------------------------------
Copyright (c) 2004 Princeton Satellite Systems, Inc.
All rights reserved.
--------------------------------------------------------------------------
AC: ACData/ACTConstants AerospaceUtils: Coord/QHills FormationFlying: Coord/GetHillsMats FormationFlying: DataStructures/EccGeometry_Structure FormationFlying: EccDynamics/DiscreteGVE FormationFlying: EccDynamics/FFEccDH FormationFlying: EccDynamics/FFEccDiscreteHills FormationFlying: EccDynamics/FFEccGoals FormationFlying: EccDynamics/FFEccLinOrb FormationFlying: EccDynamics/FFEccProp FormationFlying: EccDynamics/FFEccRMat FormationFlying: EccDynamics/FFEccYExt EccDynamics: Derivatives/FFEccDDY EccDynamics: Derivatives/FFEccDY FormationFlying: LP/LPEccentric FormationFlying: LP/LPEccentricGVE FormationFlying: Transformation/ECI2Hills FormationFlying: Transformation/FFEccDeltaElem2Hills FormationFlying: Transformation/FFEccGoals2Hills FormationFlying: Transformation/FFEccHills2DeltaElem FormationFlying: Transformation/Hills2ECI FormationFlying: Utility/ApplyDeltaV FormationFlying: Utility/Nu2TimeDomain FormationFlying: Utility/NuDot FormationFlying: Utility/RVOrbGenDV FormationFlying: Visual/FFEccAnalyzeShape Orbit: OrbitCoord/Alfriend2El Orbit: OrbitCoord/El2Alfriend Orbit: OrbitCoord/OrbElemDiff Orbit: OrbitCoord/SLR Orbit: OrbitMechanics/GVEDynamics Orbit: OrbitMechanics/RVOrbGen SC: BasicOrbit/CP2I SC: BasicOrbit/E2M SC: BasicOrbit/E2Nu SC: BasicOrbit/El2RV SC: BasicOrbit/M2E SC: BasicOrbit/M2EApp SC: BasicOrbit/M2EEl SC: BasicOrbit/M2EHy SC: BasicOrbit/M2Nu SC: BasicOrbit/M2NuAbs SC: BasicOrbit/M2NuPb SC: BasicOrbit/Nu2E SC: BasicOrbit/Nu2M SC: BasicOrbit/OrbRate SC: BasicOrbit/Period SC: BasicOrbit/RV2El SC: SCData/sCTConstants Common: CommonData/Constants Common: CommonData/SwooshWatermark Common: CommonData/xSplashSmall Common: Control/C2DZOH Common: Database/Constant Common: GUIs/TimeGUI Common: General/CellToMat Common: General/CloseIfHandle Common: General/DeBlankLT Common: General/DeleteCell Common: General/DispWithTitle Common: General/MatToCell Common: General/Watermark Common: Graphics/Axis3D Common: Graphics/Mesh2 Common: Graphics/NewFig Common: Graphics/Plot2D Common: Graphics/PltStyle Common: Graphics/TimeLabl Common: Graphics/XLabelS Common: Graphics/YLabelS Common: Graphics/ZLabelS Common: Quaternion/Mat2Q Common: Quaternion/QTForm Math: Analysis/Simplex Math: Analysis/Simplex2 Math: Integration/RK4TI Math: Linear/Cross Math: Linear/Dot Math: Linear/DupVect Math: Linear/InvP Math: Linear/Mag Math: Linear/Unit Math: Solvers/NewtRaph Math: Trigonometry/UnwrapPhase Math: Trigonometry/WrapPhase
Back to the FormationFlying Module page