The calculated result shows that the similar single-difference method can deal with GPS deformation monitoring despite the base point deformation or not.
数值计算结果表明，采用似单差法进行GPS监测时，可以不考虑基准点是否存在变形。
Through instrumental variable identification method, the single input single output difference equations and the Z transfer function were gotten.
采用辅助变量辨识方法辨识得到单输入单输出差分方程和Z传递函数。
Owing to single evaluation method educing difference results from different angles, many results of evaluation methods can't be resolved in the compatibility consistency.
由于单一的评价方法从不同的角度得出的评价结果存在一定的差异；使得多方法评价结论的兼容一致性问题难以解决。
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