摘要
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.
出处
《宇航学报》
EI
CAS
CSCD
北大核心
1993年第4期49-55,68,共8页
Journal of Astronautics
基金
国家自然科学基金资助课题No.18972024
关键词
平方根滤波
飞行试验
断续系统
Square-root filter, robustness, parameter estimation, nonlinear continous-discrete system,flight test.