Method and apparatus for navigation systems with reduced susceptibility to interference and radio interference

摘要

Protection of the considerable level where the navigation system confronts the interference or electronic jamming of all shapes to GPS, is offered with the method cost efficiency being good. This system ground control bureau and it combines with GPS the low earth orbit (LEO) adopts the network of the satellite. It links with standard bureau and the user, common range of vision range geometry to the GPS satellite is set. Also 2nd common range of vision geometry to the LEO satellite with standard bureau and the user of the same opposite is set. Terrestial station synthesizes the support signal of real time by doing the carrier phase measurement of the signal of GPS and the LEO satellite. Information of this support through the LEO satellite, in order to penetrate the electronic jamming around, is transmitted to the user receiver with high output. In order the user receiver pursued the carrier phase of the LEO satellite, recovering, next, the GPS signal was expanded the information of support the measurement which is consistent possible to make, it applies carrier phase measurable quantity and the information of support. The GPS signal where this system was lost by electronic jamming with that, probably will be is made to reconstruct.