Research on BDS Baseline Solution Method Based on Tensor Analysis
A new Beidou navigation satellite system(BDS)baseline solution algorithm is proposed to address the issue of high-order multi-dimensional data rounding affecting positioning accuracy in the process of least squares-based BDS baseline solution.This algorithm utilizes the characteristic that tensors can describe the correlation be-tween multidimensional data and captured data,and constructs a BDS baseline solution model based on tensor analysis.It collects Beidou data in the B3I frequency band for experiments,and the results show that tensor-based BDS baseline solution models can be used for BDS baseline solution.In order to further verify the reliability of the model,the results of tensor solution were compared with those of the least squares method.In the zero baseline solution,the proportion of tensor solution results superior to the least squares method solution results was 75%.In non-zero baseline calculations,the tensor solution error outperforms the least squares method solution error by 72%.The tensor solution can yield higher precision outcomes.