利用多项式拟合测量飞机油箱油量

Polynomial fit on Fuel Tank Residual Volume

摘要:

飞机飞行中，测量剩余油量是关乎飞行安全的重要工作。以往采用的查表法存在存储数据量过大的问题，而插值法的计算又过于复杂，为此，提出了一种基于多项式数据拟合的油箱剩余油量测量方法，该方法通过存储多项式系数减少数据存储量，通过将多元插值计算改为多项式计算降低运算量。实验中，首先通过地面实验数据拟合获取多项式参数，再利用飞机飞行中获取的测量数据进行计算，所得结果与油箱内剩余油量的实际测量结果相比较，测量误差满足使用要求。通过理论和实验分析，在多项式拟合的阶数选择上明确了使用三阶多项式的合理性。该方法有较好的实用性，已在实践中应用。

Abstract:

In order to measure the rest fuel of the flying fuel tank.This text introduce the measure principle of the plane fuel.Analyse the former way to find out a kind of measuring fuel method based on the Polynomial fit.At first,this method use table which Measured on the ground to calculate the multinomial coefficient table.Then,the computer use the Coefficient of multinomial coefficient table on the process of calculate Fual Volume On the plane,then get result. Analyse the advantages and disadvantages of High-order Polynomial and the feasibility of Triple-order Polynomial.Also,it gives Error analysis, Thus,it is conclude that this method is both good at feasibility and effectiveness.Last,summarize the text and present some suggestions and ideas for the disadvantages of the method.