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Indian Regional Navigation Satellites System (IRNSS) is the world’s fi rst regional navigation system with its footprint primarily over the Indian subcontinent. The system is expected to have seven satellites in all, with three satellites in GEO stationary and four in GEO synchronous orbits (Kibe & Gowrishankar 2008). IRNSS is dual use and supports two frequencies on either service of operation.
Second High Level Forum on Global Geospatial Information Management
4-6 February
Doha, Qatar
Nowadays researchers and various users are very interested in urban applications at large scale, where small UAVs are very useful. In Photogrammetry, UAVs represent a very fl exible and low-cost platform which reduces data acquisition time and provides for high resolution and high accuracy data for small area modeling…
Polar motion refers to the earth rotation axis and surface intersection point’s slow moving on the earth surface [1], realtime acquisition of polar motion is of great signifi cance to high precision satellite navigation, satellite laser ranging and deep space exploration. At present, the international high accuracy polar motion value is obtained through VLBI and SLR technology observation data calculation…
Pilotless aerial vehicle systems (PAVs) have captured many people’s imaginations through the media as combat vehicles in various war zones around the world. These vehicles of combat have acquired the pejorative term ‘drone’ as these aircraft have ‘no intelligence’ and only respond by attacking positions identified by forward personnel on the ground…