Instrument2AllanVariance
This program computes the overlapping Allan variance from an inputfileInstrument. The estimate is averaged over all arcs (arcs are assumed to contain no data gaps).
The overlapping Allan variance is defined as \[ \sigma^2(m\tau_0) = \frac{1}{2(m\tau_0)^2(N-2m)} \sum_{n=1}^{N-2m}(x_{n+2m}-2x_{n+m}+x_n)^2, \]where $m\tau_0$ is the averaging interval defined by the median sampling $\tau_0$.
| Name | Type | Annotation |
|---|---|---|
outputfileAllanVariance | filename | column 0: averaging interval [seconds], column 1-(n-1): Allan variance for each data column |
inputfileInstrument | filename |