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。
The measurement of the remaining fuel tank is important for flight safety, The problem of storage data quantity is too large in the past, and the calculation of interpolation is too complicated, thus, propose a method for measuring the residual fuel tanks based on polynomial data fitting. The method reduces the amount of data stored by the storage polynomial coefficient, and using the multivariate interpola tion, the computation of the polynomial is reduced, In the experiment, the parameters of the polynomial are obtained by fitting the experi mental data of the ground data,and calculation of the measurement data acquired during the flight of aircraft, the results were compared with the actual measurement of the remaining oil in the fuel tank,the error of the measurement meets the use requirements. Through theoretical and experimental analysis, the rationality of using three order polynomials is clearly defined in order of polynomial fitting. This method has well practice ability and has been applied in practice.
出处
《计算机测量与控制》
2015年第10期3333-3337,共5页
Computer Measurement &Control
关键词
多项式拟合
油量体积测量
减少存储量
polynomial fit
fuel volume measurement
reduction of storage
