The Network RTK Positioning Algorithm in Large Area and Its Realization

The distance between the CORS of the networks RTK is mostly 30-80km.The cost of construction and mainte- nance for networks RTK can be reduced by broadening the operating range with the algorithm of networks RTK in large area. The real time integer ambiguity resolution of base stations and rover stations for networks in large area RTK and the real time error correcting of users in large area were introduced in this paper.And the software of long range network RTK of the algo- rithm in this paper was completed.Finally,the data of CORS networks were processed by the algorithm of networks RTK in large area,and this algorithm was tested.