[Anamaria, Masayuki]
1. Lock acquisition procedure modification.
Lock acquisition of the FPMI was modified. Now the guardian can manage FPMI perfectly. It can lock very stably without any tweaking. FPMI lock stablitiy is better than before but not super good. FPMI lost lock every 10~30 min.
2. ETMY dither implementation
I implemented ETMY dither in FPMI locked state.
3. ASC guardian implementation
I created the guardian to treat ASC with WFS. The node name is 'ASC'. I could not engage MICH ASC loop for some reason.
4. DARM calibration update
I measured OLG and tuned the LSC input matrix so that the DARM calibration got correct.
5. AS PD whitening filter.
We engaged 1 whitening stage of AS PD. It improved the sensitivity at high frequencies by a factor of 1.5~2. The estimated dark noise contribution with whitening is shown in the attached file. It indicates that we are not limited by the AS PD dark noise anymore, but we have another noise source.
