模式搜索开窗拟合系统误差的滤波方法研究

摘要

为消除导航数据中的系统误差，提高定位精度，在开窗拟合系统误差的卡尔曼滤波基础上，研讨窗口长度的确定方法和过程。引入最优化思想，通过模式搜索的方法完善了窗口长度确定环节，使之更适于编程。模式搜索开窗拟合系统误差的滤波方法在过滤系统误差时有更广的适用性。%The paper discusses the way of improving positioning accuracy by eliminating the systematic errors in the navigation data. Based on the Kalman filter of window fitting systematic errors, the method and process for determining the window length are discussed. The optimized idea was introduced, which was made to be more suitable for coding by the pattern-search methods for determining window length. The Pattern-search moving windows method has wider applicability in fitting systematical errors.