Caption: Figure 15: Estimated horizontal error
from Test D.
The IT data set included: acquisition time, acquisition start time, Iridium CEP radius, Iridium latitude, Iridium longitude, GPS fix time, GPS fix attempt, GPS latitude, GPS longitude, GPS horizontal error
, activity count, receive time, repetition count, GPS satellite count, mortality and transmission error.
A shallower weapon trajectory would magnify this induced horizontal error
Table 2 - Positioning and Timing Accuracy Standard(2) Accuracy Standard Conditions and Constraints Predictable Accuracy [less than or equal to] 100 * Conditioned on coverage, service meters horizontal error
, availability, and service 95% of time reliability standards.
To see the effect of practice on a pilot's ability to acquire the pathway, a separate analysis of vertical and horizontal error
across trials was conducted.
Despite this, the maximum horizontal error
calculated by the three GNSS/vehicle dynamic sensors integration algorithms was generally smaller than 10 m during the GNSS outage for 30 seconds.
Vertical error (deviation from 150 feet above ground level) and horizontal error
(lateral deviation from a path marked on the ground) were automatically recorded and were used to assess each participant's baseline ability to control the simulator.
For example, if five points were deducted due to 5 horizontal errors
, then 51 would be divided by 56 for a percent score of 91.1 for the full mouth series.