Replacement strategies for missing velocities
From Atomix
Quality-control of raw velocities results in data loss, which usually must be replaced before computing the spectra necessary for obtaining [math]\displaystyle{ \varepsilon }[/math]. Several techniques were considered for replacing the missing samples:
- Linear interpolation
- Using the variance of the signal
- Unevenly spaced least-square Fourier transform (i.e., no replacement at all)
The number of missing samples that can be tolerated for computing reliable spectra was also investigated.
Data analysis tests
Considerations
- Trialed the above mentioned replacement strategies for differing
- Number of missing samples to identify a threshold where the segment should be completely discarded from further analysis
- Gap duration i.e., randomly missing samples vs continuous chunks of data loss
Results
