Sentence examples for before the reference epoch from inspiring English sources

This first calculation shows that a better correlation is achieved when considering an average secular variation computed over a five year time period (SV2) before the reference epoch, than when considering an average secular variation computed over a significantly longer time period (SV1).

Eleven 24 h GPS datasets, including the reference epoch and ten simulated displacement cases, were collected.

The fact that the five year average secular variation models before (SV2) and after (SV3) the 1999 reference epoch show a correlation superior to 0.8 up to degree 10 can then be taken as a first indication that not only degrees 1 to 8 but also degrees 9 and 10 of a secular variation model computed over a period of 5 years could have some useful predictive power.

We first briefly assess the extent to which average secular variation models computed over some period of time before a reference epoch correlate with an average secular variation computed over 5 years after this reference epoch.

It is also shown that moving from a reference epoch of 1 year to an epoch of 50 years frees the method from most of the rate-dependent assumptions, and simplifies the problem to a single, dominant wind mechanism.

In order to move this window with its centre starting from the zero time reference derived from the stimulus, each epoch must contain at least 64 samples before the reference.

Recent solutions of the terrestrial reference frame such as ITRF2000 are combined from multi-year data sets that contain station positions at a reference epoch and constant velocities.

But before the new epoch could begin, he decided to call it a day.

We used one epoch before the intervention (epoch 2, October 2006 to March 2007) for comparison with the epoch after the intervention (epoch 3, October 2008 to March 2009).

The reference moment for the superposed epoch analysis is shown by a vertical dotted line.

Epoch 1 (October 2003 to March 2004) was before the intervention and epoch 2 (October 2006 to March 2007) was after.