飞行实测数据相容性检验的三步法

A NEW THREE-STEP METHOD FOR COMPATIBILITY CHECK OF REAL FLIGHT TEST DATA

本文指出了1977年Klein首先建立后被各国所广泛采用的相容性检验数学模型存在的局限性,详细地分析了其在飞行实测数据应用中的缺点及其不适用性。给出了新的飞行数据鲁棒相容性检验三步法,采用数值稳定的快速三角化平方根分解滤波算法进行参数估计,仿真及实际应用证实了本文方法的有效性。

This paper points out that the traditional compatibility check method for flight test data, developed early in 1970's and thereafter be used widely,has some disadvantages and limitations, and gives a new method-three-step method,which overcomes the drawbacks existed in traditional method and makes the whole procedure very simple. At the same time,an algorithm to make the estimated parameters controllable is presented to improve the robustness of parameter estimation. Numerical stable Carlson Square-Root decomposition filter is used to estimate the state and parameters simultaniously. Calculation example indicates that the new three-step method and the algorithm te improve robustness of estimated parameters is valid,especially suited for processing measured flight test data.