Processing and Stationarity Analyzing of Accelerometer Parameter Based on Cubic Spline Interpolation

When analyzing the performance of missile accelerometer, it's very difficult to build model for the small sample, and the accuracy and integrality of the built model are very low. Through applying the method of cubic spline interpolation, the time serial of testing data is constructed and the sample content is enlarged, thus, the difficulty of building model for small sample data is also solved. Simultaneously, difference method is adopted to carry out stationarity detection and processing, all these will offer the scientifically gist for discovering the change regularity of accelerometer's performance parameter. This study has considerable academic value as well as wide prospects.