Articles in the Articles Category
JAPAN International Coorperation Agency (JICA) initiated RS course once a year since 1978FY with full sponsorship to invite 10-15 trainees per year from developing countries. JICA expanded to mapping & surveying, hydrographic survey, GIS etc. However JICA has changed the policy to introduce partially e-learning system in 2004 to improve the cost-efficiency. The reason is that the cost to invite a person from a developing country used to be 10,000 US dollars per month in average. JICA plans to expand JICA NET, a telephone-line based communication system to about 30 developing countries to enable TV conferences between Japan and developing countries.
UNIVERSITI Putra Malaysia (UPM) formerly known as Universiti Pertanian Malaysia was founded in 1971 through the merger of Faculty of Agriculture, University Malaya and Agriculture College in Serdang, State of Selangor. Since then UPM has evolved to become one of the leading universities in agriculture and science in Malaysia.
Azmi Hassan, Mustafa Din Subari
With our universities and numerous polytechnics offering Geomatic program, more is expected from them
Azmi Hassan
Center for Technology Policy & International Studies,
Universiti Teknologi Malaysia,Malaysia
Mustafa Din Subari
Center for Technology Policy & International Studies,
Universiti Teknologi Malaysia,Malaysia
THERE seems to be numerous GNSS education and training programs around locally, with government’s institutions and agencies taking the …
JUPEM is working in tune with new technologies. One of the biggest project is e-Cadastre project. The project has started this year and will be completed by the end of next year. The project envisages a complete digital cadastral database of high quality and integrity. For this purpose, advance techniques and methodologies have been employed like GPS etc.
Since the staring of GPS, many researchers have investigated its application in aerial photogrammetry. Today, with the full constellation of 24 GPS satellites operational, enabling excellent satellite geometry any time of the day, the need to apply the full potential of GPS for real time aircraft navigation and photogrammetric mapping can be realized. The use of GPS to determine relative positional data for ground control points in a photogrammetric block adjustment is widely accepted and practiced. The camera exposure station coordinates derived by Airborne Kinematic GPS drastically reduces, the number of horizontal and vertical control points needed in aerial triangulation.
In large-scale mapping, the accuracy level of control data required is very high. The lag in time between the camera exposure and the GPS epoch recording in the GPS receiver is critical in deriving accurate coordinates for the exposure station (principal point) coordinates. Due to delay in the electronic transfer of data from camera clicking to GPS receiver in recording the event makes the Lag in time to occur. To meet the high accuracy requirements for the largescale photography and mapping projects the lag in GPS recording time should be derived and applied. In this study, an attempt is made to compute the Lag-time in airborne kinematic GPS derived exposure stations from aerial triangulation.
Aerial triangulation is carried in Digital Photogrammetry work station with conventional method of using ground control points, and the exposure station coordinates are derived. Lag-time is computed by finding difference in coordinates of exposure stations derived from conventional aerial triangulation and from airborne kinematic GPS. The results of this project will help to improve the locational accuracy of GPS derived exposure stations in aerial triangulation.
Methodology
Aerial photography is carried out in the study area on 1:6000 scale with forward overlap at 60% and lateral overlap at 20% using RMK TOP30/23 camera. During aerial photography the airborne GPS is operated to record the exposure coordinates.
The computer controlled navigation system (CCNS) is loaded with flight planning data from World Wide Mission Planning (WWMP). During aerial photography CCNS takes coordinates of aircraft position from navigation system and navigate pilot for alignment as per flight plan. Based on navigation coordinates, CCNS sends signals to camera for exposure. The camera exposure system is connected to Trimble 4000 SSI dual frequency GPS system on board, which records GPS data continuously at 1.0sec sampling rate. During the camera exposure, camera system sends signal to the onboard GPS system, which record each exposure as an event marker in the GPS
Last month, New York witnessed cab drivers’ strike.
A protest against a city rule that cabs be equipped with GPS.
Popular contention among others is that GPS is overly intrusive.
It might be possible that such protests are driven by vested interests.
Nonetheless, the privacy issues cannot be ignored.
Many feel that technology is spilling into the zone of …
October 2007
9th South-East Asian Survey Congress
28 October – 2 November, Christchurch, New Zealand
http://www.conference.co.nz/index.cfm/surveyors2007/
Nav 07
30 Oct 2007 -01 Nov 2007
www.rin.org.uk, conference@rin.org.uk
November 2007
IMTA (Asia Pacific) Annual Conference & Trade Show 2007
November 2 – 3, Gold Coast, Australia
imtaaspac@chariot.net.au,
http://www.maptrade.org/events/displayevent.php?id=79
International Symposium and Exhibition on Geoinformation & International Symposium on GPS/GNSS
05 – 07 Nov 2007, Johar Bahru, Malaysia
http://www.fksg.utm.my/isg07/index1.html
Trimble Dimensions 2007
November …
THE land-sea interface is one of the most complex areas of management in the world consisting of both the marine and terrestrial environments. The coastal zone is also home to an increasing number of activities, rights and interests. Population along the coastline is continuously increasing, bringing about new pressures on the fragile eco-system of the coastal zone. This has brought with it an increased need to more effectively and efficiently manage this area to meet the economic, environmental and social outcomes of sustainable development.