Signal transfer function measurements
C1:SUS-MC*_ASCPIT_EXC channels were excited for swept sine measurements.
The TFs to WFS1-I1~4, Q1~4, WFS1/2_PIT/YAW, MC2TRANS_PIT/YAW signals were recorded.
The MC1 and MC3 actuation seems to have ~30Hz elliptic LPF somewhere in the electronics chain.
This effect was compensated by subtracting the approximated time delay of 0.022sec.
The TFs were devided by freq^2 to make the response flat and averaged between 7Hz to 15Hz.
The results have been summarized in Attachment 3&4.
Attachment 4 has the signal sensing matrix. Note that this matrix was measured with the input gain of 0.1.
Input matrix for diagonalizing the actuation/sensor response
Pitch
e.g. To produce pure WFS1P reaction, => -1.59 MC1P + 0.962 MC2P + 0.425 MC3P
Yaw
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