Study of long range network RTK algorithm

The spatial correlation of regional errors decreases along with the range between stations increases.So the range between the CORS of the network RTK is mostly in 30km~80km.While the cost of construction and maintenance for network RTK can be reduced by broadening the operating range with the algorithm of long range network RTK.The real time integer ambiguity resolution for base stations and rover stations for networks in long range RTK and the real time error correction for users in rover stations were discussed in this paper.And the software of long range network RTK was completed then.Finally, the data of CORS networks were processed by the algorithm of network RTK to verify its feasibility.