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4dVar (Double Pendulum) Input File
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====== General Parameters ==============================================
--Status ('MakeObs' to invent observations, 'Analyse' to do 4dVar)
MakeObs
--Dimensions of pendulum (l1,l2,l3, metres)
0.1, 0.2, 0.15
--Masses of pendulum nodes (m1,m2,m3, kg)
0.1, 0.1, 0.1
--Acceleration due to gravity (m/s/s)
10.0
--Time step (seconds)
0.001
--Length of integration (time steps)
5000
--Model state (initial guess(Analyse) or initial conditions(MakeObs))
--angle 1,angle 2, roc angle 1, roc angle 2 (deg and deg/s)
161.0, 100.0, -350.0, 100.0
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====== MakeObs Parameters ==============================================
--Frequency of observation output (used only for MakeObs)
50
--Noise for angles (deg, used only for MakeObs)
5.0
--Noise for roc angles (deg/s used only for MakeObs)
0.0
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====== Analyse Parameters ==============================================
--Size of each observation window (time steps)
500
--Observations (used only for Analyse)
--Value, type (1,2,3,4), error, time (sec)
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000.00, 0, 000.00, 000.00
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