计算机工程与设计
計算機工程與設計
계산궤공정여설계
COMPUTER ENGINEERING AND DESIGN
2014年
12期
4356-4359,4364
,共5页
QAR数据%航段油耗%区间估计%最小样本量%χ2 拟合检验
QAR數據%航段油耗%區間估計%最小樣本量%χ2 擬閤檢驗
QAR수거%항단유모%구간고계%최소양본량%χ2 의합검험
QAR data%segment fuel consumption%interval estimation%minimum samples%chi-square goodness of fit test
为解决基于QAR数据进行固定机型固定航段油耗区间估计时如何确定QAR数据样本量的问题，提出一种飞机航段油耗区间估计最小样本量的求解及检验方法。根据固定机型固定航段油耗样本满足 N（μ，σ2）正态分布，在满足给定估计精度和显著水平的条件下，推导航段油耗区间估计应满足的最小样本量，利用χ2拟合检验法对最小样本量进行验证，得到最小样本量成立的最小概率要求。通过实例验证了该方法的有效性，为航空公司进行固定机型固定航段油耗估算提供了可行的参考方法。
為解決基于QAR數據進行固定機型固定航段油耗區間估計時如何確定QAR數據樣本量的問題，提齣一種飛機航段油耗區間估計最小樣本量的求解及檢驗方法。根據固定機型固定航段油耗樣本滿足 N（μ，σ2）正態分佈，在滿足給定估計精度和顯著水平的條件下，推導航段油耗區間估計應滿足的最小樣本量，利用χ2擬閤檢驗法對最小樣本量進行驗證，得到最小樣本量成立的最小概率要求。通過實例驗證瞭該方法的有效性，為航空公司進行固定機型固定航段油耗估算提供瞭可行的參攷方法。
위해결기우QAR수거진행고정궤형고정항단유모구간고계시여하학정QAR수거양본량적문제，제출일충비궤항단유모구간고계최소양본량적구해급검험방법。근거고정궤형고정항단유모양본만족 N（μ，σ2）정태분포，재만족급정고계정도화현저수평적조건하，추도항단유모구간고계응만족적최소양본량，이용χ2의합검험법대최소양본량진행험증，득도최소양본량성립적최소개솔요구。통과실례험증료해방법적유효성，위항공공사진행고정궤형고정항단유모고산제공료가행적삼고방법。
To solve the problem that how to determine the QAR data sample size when interval estimating the fuel consumption of fixed plane model and fixed flight segment based on QAR data ,a method of solving and testing the minimum sample size in aircraft segment fuel consumption interval estimation was put forward .Since the fixed plane model and fixed flight segment fuel consumption samples met the normal distribution ,on the premise of satisfying the estimation accuracy and meeting the given con‐ditions of significant levels ,the minimum sample size of segment fuel consumption interval estimation was derived ,and the chi‐square test method was used to verify the minimum sample size ,the minimum probability was obtained which the minimum sam‐ple size required .An example was given to verify the validity of the method .The method provides a reference for the airlines to estimate the fuel consumption of fixed plane model and fixed flight segment .
