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R&D (FilterCavity)
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YuhangZhao - 18:21, Tuesday 06 October 2020 (2230)Get code to link to this report
Current setting of AA control loop filters and new open loop transfer function

The setting of AA loop is as follows:

 

Poles

Zeros

Gain

END_pit

0, 20(Q=1)

2(Q=1)

2

END_yaw

0, 20(Q=1)

2(Q=1)

20

INPUT_pit

0, 20(Q=1)

2(Q=1)

0.3

INPUT_yaw

0, 20(Q=1)

1.3(Q=1)

2

 

Corresponding filters are shown in attached figure 1 to 4.

Corresponding filters transfer functions are shown in the attached figures 1-4 (order: end_pit, end_yaw, input_pit, input_yaw).

With this loop, I also measured open-loop transfer functions. They are shown in attached figure 5-8 (order: end_pit, end_yaw, input_pit, input_yaw). They have unity gain frequency shown in the following table.

END_pit

0.64Hz

END_yaw

6.98Hz

INPUT_pit

0.17Hz

INPUT_yaw

0.43Hz

Images attached to this report
2230_20201006111839_aafilterendpit.png 2230_20201006111844_aafilterendyaw.png 2230_20201006111850_aafilterinputpit.png 2230_20201006111855_aafilterinputyaw.png 2230_20201006111855_aafilterinputyaw.png 2230_20201006112321_endpitgain2.png 2230_20201006112328_endyawgain20.png 2230_20201006112336_inputpitgain200.png 2230_20201006112343_inputyawgain2.png