飛行データからの空力特性推定 (第2報)

飛行風洞試験の概念とその解析法

抄録

This is the second report of the paper which discusses the physical meaning between flight test data and analyses, by studying the equation error method. As the more inclusive concept in the equation error method, the “in-flight wind tunnel test” concept is introduced. Under this concept, two methods can be thought out in addition to the equation error method, which respectively correspond to the output error method and the maximum likelihood method. Furthermore, it is represented that the equation error method has the built-in weighting function, which makes smaller the roles of the explanatory variables having noises as these noises increase. And the modified use of the multiregression analysis, in the case that the noise variances in the explanatory variables are known, is represented.