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International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B2. Istanbul 2004
price and conditions of acquisition for the information where
put at a par with those of the NOAA AVHRR data. This can
easily be explained given the fact that due to the centralized
data and quality-assured production process of VEGATION
data these are vastly superior to those of NOAA AVHRR.
4000 4
— Comercial pricing
— Free data aget
3.000 -
i TRO CC CT A "rU
| Changed data | d
8 | policy | 7
en #
3k A.
0 7 ; 7 T I e gent 7 T T s
8 a 8 8 8 8 8 8 3
y o. pep popnm r2 $ 2
Date
Figure 4. Evolution of registered users of VEGETATION data
before and after changes in the pricing policy (from
Van Speybroeck & Sayag, 2004).
All these features will lead to :
® a lower production cost for the UAV data and information
as compared to present-day systems,
* a wide data dissemination of the data and hence an
increased demand for such high-quality data, and
* à state-of-the-art data and information acquisition system
wished by both national and supra-national organizations
to standardize the data and information intake.
5. IMPLEMENTATION TIME SCHEDULE
2004 2005
3 3 OI|C
est- and clearance with UAV
of camera
of camera in UAV
HALE UAV and
of thermal camera
of thermal camera
of mini-SAR
mini-SAR
Figure.5. Description of the time-line for the first phase of the
HALE UAV project
There are two main phases in the implementation of the present
concept. On the one hand there is a specific Belgian R&D
project which includes the development of both the first UAV
and the full suite of payload instruments to be put in it in 2005
and later. As can be seen from Figure 5, this time line finalizes
the development of the laserscanner by 2006 and the mini-SAR
by 2007.
On the other hand there is the extension of the Belgian program
into the EO community in Europe: the PEGASUS-project. The
time schedule of this project can be given as follows :
Spring and Summer 2005
Demonstration flights with up to 3 weeks endurance over
Flanders (Belgium) as part of the Belgian R&D program with
the multispectral camera payload. This serves as a proof-of-
concept for the complete effort.
Summer 2006
Demonstration flights over Belgium with an endurance of up to
6 months with multispectral camera and laser altimeter. Start of
additional test flights over the complete Benelux (Belgium, The
Netherlands and Luxemburg).
Summer 2007
7 months endurance with complete payload availability over
Benelux, France, Germany and Denmark.
From 2008 onwards
Further expansion over Europe towards the east (Poland,
Hungary, Czech Republic, Austria, etc., ...) and the south
(Spain, Italy, etc., ...).
Free of charge test data will be available for interested parties
from 2005 onwards to evaluate the data quality and to express
further interest of the customers in the PEGASUS-project.
These data will also spur additional research activities in the
development of software automation tools to assist in the
production processes from data toward information.
6. CONCLUSIONS
A thorough analysis of the present EO market and the foreseen
user requirements point to the need for data with a high update
rate, high accuracy and high ground resolution but at an
affordable, i.e. low cost. This requires the merging of the
advantages of both acrial and satellite data without their
respective setbacks. It is believed that HALE UAV can fulfill
this promise and thereby grab the foreseen growth in the EO
market by showing specific features :
e data comparable and compatible with aerial photography
from a photo scale of 1:8 000 or smaller, and aerial
laserscanners whereby the data will be compatible with
present day modern digital airborne systems,
* a centralized and quality-assured system available for the
whole of Europe corresponding to the highest quality
standards set for large scale digital mapping,
* all data will be immediately available through the
internet. Even in disaster monitoring, real-time data from
the hovering UAV's will be available on-line,
e all the data and subsequent derived information products
will be available to both end-users and OEM's. This
allows a large dissemination and use of RS data in the
society as a whole, and.
* the data will be delivered at a cost significantly lower
than presently by wholly owned data acquisition.
REFERENCES
AHN, 2000. Productspecificatic AHN2000.
http://www .minvenw.nl/rws/mdi/geoloket/ahn/docs/prodspec_a
hn 2000.zip (accessed 29 Apr. 2004)
Bermyn, J., Vautmans, L., 2004. HALE UAV for Security and
Crisis Management Applications.
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