惯组测试小样本等间隔二次修正插值法

Small Sample Uniformly-Space Second Corrected Interpolation for Testing of IMU

针对构建惯组测试数据时间序列遇到的小样本、测试时间非等间隔等问题，本文提出惯组测试数据的小样本等间隔二次修正插值法。对经过预处理的测试数据进行三次样条插值，得到基本时间序列。在此基础上再进行插值，得到足够的样本容量。所得的时间序列需经平稳性检查才能进行建模分析。

According to the problem about small sample and testing time off-normal, which has been produced in building the time series of IMU＇s data, the article presents IMU＇s data testing of small sample uniformly-space by second corrected interpolation. First, the testing data must be interpolated and the basic time series must be built. Second, the process would do again based on the former result. At the end we would get the sample size enough. The result of time series must be verified on stability before the model is constructed.