Republic of Zambia Ministry of Health. Indoor Residual Spraying (IRS) GIS Training and Spray Area Mapping Basics of Global Positioning Systems (GPS). Training Workshop: 29 February –3 March 2008, Chipata, Zambia Web: www.nmcc.org.zm Email: [email protected] Definition of a GPS.
A set of satellites in geostationary orbits used to determine geographical location anywhere on the earth by means of portable electronic devices.
GPS is based on satellite ranging:
Based on this principle, one needs to know the following information in order to compute one’s position: