Abstract
Based on the non-statistical theory, this paper proposes a new technique for the optimization of the earth gravity field model based on the maximum membership degree and the principle of information entropy, combined with the “removal and recovery” algorithm. On the basis of theoretical analysis, eight earth gravity field models were selected and 33 elevation points in the same region were selected. Combined with the new technology adopted in this paper, model optimization and precision analysis were carried out, and it was found that the model based on the optimal model was more suitable for elevation fitting. Further data analysis shows that the remove-recovery algorithm based on the optimal model can improve the feasibility of GPS elevation measurement in high-precision measurement.
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