VIA Technologies EPIA SN-Series Specifications download pdf (Page 134)

Results of the test campaigns

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In Figure 110, the distance between planned and flown trajectories is plotted for the

first stripe, showing a mean distance of about 6.3 m. The same happens for the others

stripes; the worst case is represented by the 2

stripe which has a mean distance from the

planned of about 9.6 m. The aircraft entered the target zone at 13:27 and exited at 14:04

for a total elapsed time of about 37 min against the 39 min computed by the planning

software. During the flight, 1235 images were acquired because the camera was left

armed also during maneuvers.

This third campaign, has demonstrated that the visual interface adopted for the

FASTER EM, allows the pilot to perform a very narrow (90 m) multi-stripes flight path.

Differences between the planned and the flown trajectories, contained within 10%, can be

taken into account during flight planning suitably adjusting the overlap percentage. The

last test campaign has also revealed that the additional pilot workload is not negligible,

especially during long missions. A possible solution to reduce pilot loads is to increase

the tunnel size during transferring and turnabout maneuvers, where image acquisition is

not working. Then tunnel size will be progressively reduced during the 60 s, re-aligning

phase of the 45° procedure turn.

Acquired images were used to built some image mosaic in order to verify the

expected along track and across track overlap. To generate mosaics a specific software,

PtGUI, was used and an example of the output is shown in Figure 111 and Figure 112.

Figure 111: Brisighella mosaic, cropped image

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VIA Technologies EPIA SN-Series Specifications Page 134