How to interpret Allan Deviation plot for gyroscope?

Pranav Shadanan Deshpande @Pranav_Deshpande3

12 December 2018 0 2K Report

Regions with different slopes correspond to different types of noises in Allan Deviation plot of a steady gyroscope at steady temperature.

My doubts are:

1) What is significance of x axis in this plot, how cluster/window size affect different noises?

e.g. if a 7 degrees/Hr value on Y-axis corresponds to 10 second value of x axis (forget which noise region it is, i.e. antiquarian, ARW, Bias Stability, etc.) what I can say from that particular (x,y) combination on Allan deviation curve

2) Bias Instability has two different units in two different sources (http://cache.freescale.com/files/sensors/doc/app_note/AN5087.pdf) dps/Hr and degrees/Hr. Which one is correct?

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