What Is Satellite Station In Surveying
How many feet are in surveying.
What is satellite station in surveying. Satellite surveying is a form of land survey that uses location information provided by the gps satellite system to track the location of each reference point. Such stations can but it is not. There is a zero point of reference called a total station. Gps stands for global positioning system gps is a highly accurate navigation system using signals from satellites to determine a location on the earth s surface irrespective of weather conditions.
A total station is an electronic optical tool utilized in modern surveying. Satellite survey remote sensing utilise satellite imagery which have been processed using commercial geographic information system software. Satellite surveying is a form of land survey that uses location information provided by the gps satellite system to track the location of each reference point. The gps is a satellite based navigation system made up of a network of 24 satellites placed into orbit by the u s.
Three space co ordinate maps are generated with an accuracy determined by the datum position accuracy and optical resolution of the satellite platform. A radio signal is transmitted at a steady frequency by the satellite but a stationary observer detects a higher frequency as the satellite approaches and a lower one as it recedes. It is dependent on gps satellites high above the earth which transmit signals containing the time and location of the satellite. The principal method of using satellites for accurate positioning is based on an application of the doppler effect.
Satellite station to secure well conditioned triangles or to have good visibility objects such as chimneys church spires flat poles towers lighthouse etc are selectedastriangulationstations. A total station is an electronic optical instrument used in modern surveying and building construction that uses electronic transit theodolite in conjunction with electronic distance meter edm it is also integrated with microprocessor electronic data collector and storage system. Gps works in any weather conditions anywhere in the world 24 hours a day. Gps was originally intended for military applications but in the 1980s the government made the system available for civilian use.
In surveying free stationing also known as resection is a method of determining a location of one unknown point in relation to known points.