Recursive Least Square Algorithm of High-Accuracy Surface Modeling Based on Surface Constraint (HASM-AD)

Proceeding from surface equations for HASM and combing with adjustment theory of data, this paper establishes computing models based on independent units and solves equations for calculating in groups by adopting recursive least square method. The research shows that HASM-AD algorithm based on recursive least square method reduces the time complexity and resource occupancy for calculating and breaks through the limits of the number of data on computation, and its computing accuracy is higher than that of traditional spatial interpolation methods.