ESDU 92021 uses the analysis of a set of measurements of approach speed and associated landing ground roll distance to illustrate the use of linear@ two variable regression. Regression is used twice: firstly@ on an empirical basis@ a linear relationship is assumed between the two variables@ and@ secondly@ taking account of the physics of the manoeuvre@ a linear relationship is assumed between the square of the approach speed and the ground roll. In both cases@ the significance of the derived fit is verified using the F variance ratio test and the correlation coefficient. Both fits are found to be excellent@ although the latter is clearly the better physical model. An introduction to statistical techniques for use in the analysis of aircraft performance is given in ESDU 91017.
92021-1992由ESDU - Engineering Sciences Data Unit 发布于 1992-10-01,并于 2004-05-14 实施。
非常抱歉,我们暂时无法提供预览,您可以试试: 免费下载 92021-1992 前三页,或者稍后再访问。
点击下载后,生成下载文件时间比较长,请耐心等待......
Copyright ©2007-2022 ANTPEDIA, All Rights Reserved
京ICP备07018254号 京公网安备1101085018 电信与信息服务业务经营许可证:京ICP证110310号