Roger O'Brient

This page summarizes work on TDM noise models. We should probably create one page for noise models of both TDM and FDM flavors, for one-stop-shopping. We could edit this page to add in FDM computations as well.

What's done so far:

• Loading model constructed, applied to 30K Primary
• Computed bolometer Gs & taus
• Ploted NEI vs frequency
• Computed NEP white-noise plateau
• Compared to B2/Keck Data
• 1/f noise study (emperical results, pulled from the literature)

To do:

• adjust the sampling frequency and nyquist inductors to study how aliased noise changes
• Repeat analysis for 4K primary (?) Also repeat analysis for more realistic loads from window and filters, whose loading will not be negligable.
• Generalize to higher MUX factors
• Make plots of noise vs stage temp and optics for Chris' cryo design.
• Form focal plane mass estimates for Chris' cryo design.

Slide decks for public discussion:

• Imager Telecon 20170919, TDM noise Study
• Imager Telecon 20170919, 1/f noise Study

Note: slides are a funny way to add content to a wiki, but since they lend themselves well to JPL's document release protocol, I will put most technical content in that form.