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Improved ambiguity function method based on analytical resolution for GPS attitude determination

An improved ambiguity function method (AFM) for GPS attitude determination is presented. The new algorithm is a combination of an analytical resolution and the AFM. The first part of the algorithm is capable of reducing the search integer space by solving a dual nonlinear coupled equation, while the second resolves the adaptive function within the analytical solutions space. Static and kinematic experiments are performed to demonstrate the feasibility of the new algorithm in terms of accuracy, reliability and computation load. Comparisons to traditional algorithm and other measurement tools are given.