基于残差特性分析的野值检测与剔除方法

在导航和控制工程实际应用中,野值的在线处理一直是难点之一.现有的利用残差的野值判别方法往往建立在最优滤波的前提上,在处理速度、效果和实用性上有所局限,难以适用于这一范围.在分析残差信号特征的基础上,利用残差变化率的变化规律,使用莱特准则对野值进行判断.仿真计算和实际工程应用表明,该方法算法简单、效果明显,能够满足工程实际应用的要求,很大程度上消除了野值对滤波精度的影响.

Outlier Detection Method Based on Characteristic Analyzing of Residue

In the practice of navigation and control engineering,the on-line detection of an outlier is always one difficult problem,the current method for outlier identifying is commonly based on optimism filtering,so limited in velocity,effecting or practicability.Based on analyzing the characteristics of residue,the Letts' criterion method was used to an identify an outlier.The results of simulation and engineer practices express that the algorithm is simple and effective,the affection of outlier on filter precisio...