simonsobs / simonsobs/sotodlib
Preprocess: Need to restrict noise fitting in low passed data
@mmccrackan is already working on this.
Since Jan 3, 2025.
- Dominant language
- Python
- Stars
- 19
- Forks
- 23
- Avg merge
- 1d 5h
- Merged PRs (30d)
- 14
Description
Currently the demodulation lowpass filter is set by the hwp rotation speed if the filter parameters are not specifically provided. The noise fitting function should provide a check that frequencies above the lowpass filter are not included in the fits and raise a warning. @kmharrington raised this because she was analyzing stare observations where the HWP rotation speed was varying in each obs. The lpf was adjusting but the white noise/noise fit region was not fit accordingly so the results were biased leading to an erroneous interpretation of a large dependence of our noise levels on our choice of HWP rotation speed.
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