EccentricControlAnalysis:

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.
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  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
  ------------------------------------------------------------------------
%
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   Copyright (c) 2004 Princeton Satellite Systems, Inc. 
   All rights reserved.
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