介绍了时间序列分析理论及利用时间序列分析方法建立陀螺随机漂移模型的步骤,利用实验测量数据,建立了挠性陀螺的随机漂移 ARMA 模型,并应用一种单隐层 BP 神经网络对 ARMA 模型的参数进行辨识。利用 MATLAB 设计了一套完整的软件,软件...介绍了时间序列分析理论及利用时间序列分析方法建立陀螺随机漂移模型的步骤,利用实验测量数据,建立了挠性陀螺的随机漂移 ARMA 模型,并应用一种单隐层 BP 神经网络对 ARMA 模型的参数进行辨识。利用 MATLAB 设计了一套完整的软件,软件包括陀螺漂移数据的检验与预处理、模型形式的选择、模型参数的估计、模型适用性的检验。利用这个软件可以很方便的对所采集到的陀螺漂移数据的随机特性进行分析,并建立陀螺随机漂移误差的 ARMA 模型。展开更多
A data gathering system is designed for the interferometric fiber optic gyroscope (IFOG) of land strapdown inertial system. IFOG is tested and the testing curve is given. The test data of IFOG are analyzed with Allan ...A data gathering system is designed for the interferometric fiber optic gyroscope (IFOG) of land strapdown inertial system. IFOG is tested and the testing curve is given. The test data of IFOG are analyzed with Allan variance method and each error coefficient is identified. Furthermore, a random drift error model for IFOG is built by the method of time series analysis. The conclusion provides supports for improving IFOG design and compensating for errors of IFOG in practice.展开更多
文摘介绍了时间序列分析理论及利用时间序列分析方法建立陀螺随机漂移模型的步骤,利用实验测量数据,建立了挠性陀螺的随机漂移 ARMA 模型,并应用一种单隐层 BP 神经网络对 ARMA 模型的参数进行辨识。利用 MATLAB 设计了一套完整的软件,软件包括陀螺漂移数据的检验与预处理、模型形式的选择、模型参数的估计、模型适用性的检验。利用这个软件可以很方便的对所采集到的陀螺漂移数据的随机特性进行分析,并建立陀螺随机漂移误差的 ARMA 模型。
文摘A data gathering system is designed for the interferometric fiber optic gyroscope (IFOG) of land strapdown inertial system. IFOG is tested and the testing curve is given. The test data of IFOG are analyzed with Allan variance method and each error coefficient is identified. Furthermore, a random drift error model for IFOG is built by the method of time series analysis. The conclusion provides supports for improving IFOG design and compensating for errors of IFOG in practice.
