2008 ION: Three carrier ambiguity resolution: generalised problems, models...
Yanming Feng and Bofeng Li
In this paper, the problems of three carrier phase ambiguity resolution (TCAR) and position estimation (PE) are generalised as real time GNSS data processing problems for a continuously observing network of any large scales. In order to describe these problems, a general linear equation system is presented that combines uniforms various geometry-free, geometry-based and geometry-constrained TCAR models, along with state ransition questions between observation times. With this general formation, generalised TCAR solutions are given to cover all the real time GNSS data processing scenarios, which can also be simplified to various integer solutions, such as geometryfree rounding and geometry-based LAMBDA solutions with single and multiple epoch measurements. In fact, various ambiguity resolution (AR) solutions differ in the floating ambiguity stimation and integer ambiguity search processes, although their theoretical equivalence depends on use of the exactly same observational systems models and assumptions.
