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Sponsored by the Center for Science and Technology Development of the Ministry of Education
Supervised by Ministry of Education of the People's Republic of China
Gross errors in data processing will have great impact, providing a robust estimation to eliminate and reduce measurement errors in the estimation of gross errors on the interference and influence, solving the best valuation method. In this paper, a modern adjustment theory discussed robust estimation theory, the coordinate precision is low in the public or the case of error is too large to obtain high-precision coordinate transformation method. Were using a different anti-difference weighting function for data inspection, data obtained through comparisons of the methods for obtaining high-precision coordinates.
Keywords:Robust estimation; Coordinate transformation; Weight function